Question

Solve for x: 3x- (x-9) = 2(x+5)

Answer 1

Start off by distributing

Answer 2

It may help to think of

3x- (x-9) = 2(x+5)

as

3x- 1(x-9) = 2(x+5)

Answer 3

yeah i did but i got 2x-9=2x+10 so i don't know what the answer is because no number can be x. would it be null?

Answer 4

2x-9=2x+10

2x-9-2x=2x+10-2x

0x-9= 0x+10

0-9 = 0+10

-9 = 10... which is FALSE

So there are no solutions (due to the contradiction in the last equation)

Answer 5

okay thanks!

Answer 6

np