Question

Find the value of x so that (x, 12) satisfies y = 4x +4.

Answer 1

Plug in 12 for y and rewrite the equation.

12 = 4x + 4

Subtract 4 from both sides.

8 = 4x

Divide by 4 on both sides.

2 = x

The ordered pair is (2, 12) and x = 2.