Question

I need help with question 9

Answer 1

3x-10=7x+2
Subtract 2 from both sides
3x-12=7x
Subtract 3x from both sides
-12=4x
Divide both sides by 4
X=-3
Hope this helped:)

Answer 2

3x-10=7x+2      First you have to subtract 2 from both sides  

3x-12=7x          Then subtract 3x from both sides  

-12=4x              Lastly, divide both sides by 4

And the answer is X=-3