Question

If 2x + 8 = 16 , what is the value of x + 4 ?

Answer 1

8

Explanation:

2x + 8 = 16

Subtract 8 to both sides.

2x = 8

Divide by 2 on both sides to cancel out the coefficient of x.

x = 4

Now we plug in x to, x + 4

(4) + 4

= 8

Answer 2

x+4=8

Explanation:

Lets start to divide the given expression (2x+8) by the coefficient of 'x', (the number 2), by doing this, we have:

x+4=8

giving right away the desired expression