Question

-3(-x + 4) = -9
x = __________

Answer 1

negative 3 times negative x is ________
remember a negative times a negative is a positive

Answer 2

3x?

Answer 3

YES!!! what is -3 times 4?

Answer 4

-12

Answer 5

yep
then you have -3x-12=-9
so what do you do next

Answer 6

i mean 3x-12=-9

Answer 7

add 12?

Answer 8

yep add 12 to each side, canceling out the negative 12 on the left side

Answer 9

what do you get then

Answer 10

3

Answer 11

yep 3x=3

Answer 12

then what

Answer 13

1

Answer 14

YEP GOOD JOB!!!! :)

Answer 15

x=1