Answer:
-m + 6 = 3m + 14
m = -2
Explanation:
Hi! This answer may seem too big, but I suggest taking the time to read it as it will help you a lot in the future.
Step 1:
Let's start by multiplying -(m - 6).
Essentially, you are turning the expression (m - 6) negative or multiplying the expression (m - 6) by -1
This uses the distributive property of multiplication (distributing the outside factor to all the terms inside the parenthesis. You'll see how it works soon.)
Let's solve:
- -(m - 6)
- -1(m - 6)
- -1(m) - 1(-6)
PAUSE
Here are a couple of tips:
Tips:
- A positive number times a negative number is always a negative number
- A positive number times a positive number is always a positive number
- A negative number times a negative number is always a positive number
- A number times 1 is the same number
- A number times -1 is the opposite of that number
So basically, if you are multiplying terms with the same sign (positive or negative), it is always positive. Numbers with opposite signs are always negative.
CONTINUE
Using the information we have now, we can multiply the terms
The left-hand side of the equation becomes 6 - m
Step 2:
Now, let's solve for m.
Solve for m:
Tips:
- When dividing a positive number by a negative number, the answer is always negative
- When dividing a negative number by a positive number, the answer is always negative
- When dividing a positive number by a positive. number, the answer is always positive
- When dividing a negative number by a negative number, the answer is always positive.
- When dividing a number by -1, it is the opposite of that number
- When dividing a number by 1, it is the same number.
The same rules apply for division as they do to multiplication as well.
What you do to one side of the equation should happen to the other side.
- Step 1: 6 - m = 3m + 14
- Step 2: 6 = 4m + 14
- Step 3: -8 = 4m
- Step 4: 4m = -8
- Step 5: m = -2
Analyze:
- When solving for variables, you want all the terms with that variable to one side.
- In the first step, we are subtracting m. To counter that operation, we add m to both sides.
- Similarly in step 2, we are adding 14, so to counter that, we subtract 14.
- In steps 3 and 4, we are multiplying m by 4. To counter that, we divide by 4
Hope this helps you out a lot!
-Chetan K