Solving 6 + 3(-2): A Step-by-Step Math Explanation

by TextBrain Team 51 views

Hey guys! Let's dive into this math problem together: 6 + 3(-2). If you're scratching your head wondering where to even start, don't worry! We're going to break it down step by step so you can not only solve this particular problem but also understand the underlying principles. This isn't just about getting the right answer; it's about building your math skills and confidence. So, grab your metaphorical (or literal) pencil and paper, and let's get started!

Understanding the Order of Operations: PEMDAS/BODMAS

Before we even touch the numbers, it’s super important to understand the order of operations. Think of it as the golden rule of math! You might have heard of the acronyms PEMDAS or BODMAS. They stand for:

  • PEMDAS: Parentheses, Exponents, Multiplication and Division (from left to right), Addition and Subtraction (from left to right).
  • BODMAS: Brackets, Orders, Division and Multiplication (from left to right), Addition and Subtraction (from left to right).

They both mean the same thing, just using slightly different words. The key takeaway here is that we need to tackle operations in a specific order to get the correct answer. This order ensures that everyone solves the same problem in the same way, avoiding any confusion. In our expression, 6 + 3(-2), we have addition and multiplication. According to PEMDAS/BODMAS, multiplication comes before addition. This is crucial, guys, so let's keep it in mind as we move forward.

Why is this order so important? Imagine if we just went from left to right. We might try to add 6 and 3 first, which would give us a completely different result. The order of operations is like a mathematical traffic law, ensuring everything flows smoothly and correctly. It’s the foundation upon which more complex math problems are built. Mastering this concept early on will save you a lot of headaches down the road. Think of it as building a house – you need a strong foundation before you can start putting up the walls!

Step 1: Tackling the Multiplication

Now that we’ve got the order of operations down, let’s apply it to our problem. The first thing we need to do is handle the multiplication: 3(-2). Remember, guys, a positive number multiplied by a negative number results in a negative number. So, 3 multiplied by -2 equals -6. It's like you're adding -2 three times: -2 + -2 + -2 = -6. Think of it in terms of owing money. If you owe $2 to three different people, you owe a total of $6. This concept is fundamental to understanding how negative numbers work in multiplication.

Why is it negative? It all boils down to the rules of signs in multiplication. When the signs are different (positive and negative), the result is negative. When the signs are the same (positive and positive, or negative and negative), the result is positive. This rule is consistent throughout mathematics and is crucial for solving equations and expressions involving negative numbers. Mastering this will not only help you with this problem but also with many others in the future. So, let’s make a mental note of this rule: different signs mean negative, same signs mean positive. Keep practicing with different numbers, and soon it will become second nature!

So, after performing the multiplication, our expression now looks like this: 6 + (-6). We've successfully simplified the multiplication part and are one step closer to the final answer. Take a moment to appreciate the progress! Breaking down complex problems into smaller, manageable steps is a key strategy in math, and you're doing great so far.

Step 2: Performing the Addition

Okay, we've conquered the multiplication, and now we're left with a simple addition problem: 6 + (-6). This is where understanding how positive and negative numbers interact is key. Adding a negative number is the same as subtracting the positive version of that number. So, 6 + (-6) is the same as 6 - 6. Think of it like this: you have $6, and then you spend $6. How much money do you have left? Zero!

This concept of adding a negative being equivalent to subtraction is a cornerstone of arithmetic. It’s important to visualize this on a number line. Start at 6, and then move 6 units to the left (because you're adding -6). You'll land right on 0. Understanding this visual representation can really solidify your understanding of negative numbers. Furthermore, this principle extends to more complex scenarios. For example, if you had $10 and spent $15, you would have -$5 (or owe $5). So, the idea of adding a negative as subtracting is universally applicable in mathematics.

Therefore, 6 + (-6) = 0. And there you have it! We've arrived at our final answer. You've successfully navigated the expression using the correct order of operations and a solid understanding of positive and negative numbers. High five, guys! You're doing awesome.

The Final Answer: Zero

So, the solution to the expression 6 + 3(-2) is 0. But more important than just getting the right answer is the process we followed. We broke down a potentially confusing problem into manageable steps, applied the order of operations, and carefully handled the interaction of positive and negative numbers. This is the kind of problem-solving approach that will serve you well in all your mathematical endeavors. Remember, math isn't about memorizing formulas; it's about understanding the concepts and applying them logically.

This result, zero, might seem simple, but it holds significant importance in mathematics. Zero is the additive identity, meaning that adding zero to any number doesn't change the number's value. It's also a crucial concept in algebra and beyond. So, understanding how we arrived at this zero is a big win! Plus, you've now got another tool in your math toolbox. The ability to confidently handle expressions like this is a building block for more complex equations and concepts.

Key Takeaways and Practice Makes Perfect

Let’s recap the key takeaways from solving this problem:

  1. Order of Operations (PEMDAS/BODMAS): Always remember the correct order: Parentheses/Brackets, Exponents/Orders, Multiplication and Division (from left to right), Addition and Subtraction (from left to right).
  2. Multiplication with Negative Numbers: A positive number multiplied by a negative number results in a negative number.
  3. Adding a Negative Number: Adding a negative number is the same as subtracting its positive counterpart.

But remember, guys, understanding is just the first step. The real magic happens when you practice! The more you practice, the more comfortable and confident you'll become with these concepts. Try solving similar problems with different numbers. Maybe try 10 + 2(-3), or 5 + 4(-1). The key is to keep challenging yourself and reinforcing your understanding.

You can find tons of practice problems online or in your textbook. Don't be afraid to make mistakes – they are a natural part of the learning process. The important thing is to learn from your mistakes and keep pushing forward. And if you get stuck, don't hesitate to ask for help! There are tons of resources available, from teachers and tutors to online forums and videos.

Keep Exploring the World of Math!

Congratulations, you've successfully solved 6 + 3(-2)! You've not only found the answer but also deepened your understanding of important mathematical principles. Remember, math is a journey, not a destination. There's always something new to learn and explore. So, keep asking questions, keep practicing, and keep building your math skills. You've got this!

This stuff might seem tricky at first, but the more you practice, the easier it gets. And the more confident you become, the more you'll start to see math not as a scary monster, but as a fascinating puzzle to be solved. So, keep up the great work, and happy problem-solving!