Question

Solve for x,
-3x = -15

Answer 1

x = 12

-3x = -15
+3 +3
—————
x = 12

negative and a positive = subtract

When the signs are the same add

Answer 2

x=5

Explanation:

so to isolate the x you dived the -3 to both sides

so it will now be

x=5 because a negative times or divided by a negative equals a positive so to prove that x=5

-3(5)=-15

which is true