Question

I need some help with #7.

Answer 1

Its 48

Explanation:

2x+4=4x-16 is your equation.

subtract 2x to both sides

4=2x-16

add 16 to both sides

20=2x

divide 2 by both sides.

10=x

Then plug in the 10.

2(10)+4+ 4(10) - 16=

24+24= 48