Question

Help, please explain your answer so I understand. Thanks medal will be awarded.

Answer 1

1) expand the left side
2) add "a" to both sides
3) add 6 to both sides
4) divide both sides by 4.

tell me what you get.

Answer 2

(couldn't post it before, sorry)

Answer 3

Do I add six to 1/3 or the problem in the parenthesis

Answer 4

you multiply everything in the parenthesis on the right side times 1/3
9a times 1/3 would be 3a
and
-18 times 1/3 would be -6.
So after preforming the 1st step, you get

6-a=3a-6

then step 2, to add a to both sides

6-a=3a-6
6-a+a=3a-6+a ("a"s on the left side cancel) you get,
6=4a - 6 (right ?)

Then step 3, to add 6 to both sides
6=4a - 6
6+6=4a - 6+6 (6 s cancel on the right, and you get...)
12=4a

step 4 divide both sides by 4,

Can you tell me what a equals?

And, how many solutions can there be?

Answer 5

12/4 is 3

Answer 6

a=3

Answer 7

yes

Answer 8

number of solution is?

Answer 9

Theres only one solution

Answer 10

correct?

Answer 11

Yup, that's right !

Answer 12

Thank you