Question

What is the value of x? Justify each step. AC = 16

Answer 1

x=1

Explanation:

AB+BC=AC

2x+6x+8=16

8x+8=16

8x=16-8

8x=8

divide both sides by 8

x=1

Answer 2

-2

Explanation:

2x-6x=8

-4x=8

x=-2