Question

The model represents an equation. What value of x makes the equation true?

A) −3
B) −9
C) 3
D) 9

Answer 1

C

Explanation:

(-3) x 4 = (-12) + 6 = -6

3 + 3 = 6 + (-12) = -6

(-6) = (-6)

Adding positive to negative is like subtracting the negative if that makes sense.

Answer 2

-4x+6=2x-12
6=6x-12
18=6x
3=x