Question

9= 12+ 5x - (6x+7) @jackellyn can you help me some more?

Answer 1

First, get rid of the parentheses. To do that, distribute the negative sign to the left of the parentheses.

Answer 2

So distribute the -1 with the parenthesis first, then combine like terms and solve like we diid before

Answer 3

I know we did this before. I guess it just helps to go over it a few times for me. im sorry if im a nuisance.

Answer 4

I am here to help! :)

Show me the first step of distributing

Answer 5

12+ 5x- (-6) + (-7)
is that right?

Answer 6

don't forget the 9, your distribution is correct but the -6 has an x

Answer 7

oh ya. forgot about the 9 haha. ok so next its
9+12+ (-7)= 5x- (-6x)
is that right?

Answer 8

No.

9 = 12+ 5x - (6x+7)

A negative sign to the left of parentheses is the same as -1 multiplying the parentheses.

9 = 12 + 5x -1(6x + 7)

Now you distribute the -1 throughout the terms inside the parentheses.

9 = 12 + 5x -1(6x) + (-1)(7)

9 = 12 + 5x - 6x - 7

Now collect like terms on the right side.

Answer 9

@samissmurfette , @mathstudent55 is right. Do you see all the steps he did? Now combine like terms, be careful with your signs

Answer 10

ugh. I cant seem to understand it. im pulling my hair out. cause I did that part but then I just get lost.

Answer 11

@jackellyn

Answer 12

Just go step by step

9= 12 +5x -(6x)-7
9-12+7=5x-6x
4=-x
x=-4

Answer 13

"9-12+7=5x-6x" why is it 9-12+7? i thought it would be 9+12-7

Answer 14

@jackellyn

Answer 15

Well the -7 is on the right side and you need to move it to the left so you need to add 7 to both sides

Answer 16

ohhhhhhh. i get it. and since 12 is postive you are subtracting 12 from both sides?

Answer 17

@jackellyn

Answer 18

Exactly