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39 votes
39 votes
This for math lol and can i also get some tips please thx

This for math lol and can i also get some tips please thx-example-1
User MePengusta
by
2.4k points

2 Answers

13 votes
13 votes

Answer:

box 1: ( - )

box 2: ( +1 )

box 3: ( 6 )

Explanation:

-(m-6)= 3m+14

- m +1 6 = 3m+14

Hope it helps!

User Igx
by
2.6k points
18 votes
18 votes

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

  • -1(m) - 1(-6)
  • -m + 6
  • 6 - m

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
    \hookrightarrow \text{Adding m to both sides}
  • Step 3: -8 = 4m
    \hookrightarrow\text{Subtracting 14 from both sides}
  • Step 4: 4m = -8
  • Step 5: m = -2
    \hookrightarrow\text{Divide both sides by 4}

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

User Candyline
by
2.6k points
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