Answer:
x = -0.5
Step-by-step explanation:
-3x+7x can be simplified to 4x (subtract 3 from 7 since it's a negative)
then you get
4x = -2
From here, divide both sides by 4 to isolate the x
4x/4 = -2/4
Then you'd get
x = -2/4
or you can simplify that to
x = -1/2 or x = -0.5