I believe that your answer is correct
Answer:
x = -9, -2, and 3.
just set everything possible to 0.
since 0 = 0 it must be true.
Remember you can do anything to an equaiton as long as you do it to both sides
-x=4-3x
add 3x both sides
3x-x=4+3x-3x
2x=4+0
2x=4
divide 2
2x/2=4/2
2/2x=2
1x=2
x=2
