algebra

Solve for x:
(x+8)/2 = 10

Multiply both sides of (x+8)/2 = 10 by 2:
(2 (x+8))/2 = 2×10

(2 (x+8))/2 = 2/2×(x+8) = x+8:
x+8 = 2×10

2×10  =  20:
Answer: | x+8 = 20                 x=12

Multiply by 2 on both sides. 

x+8=20

Subtract 8 from both sides, now you have x=12.

So x=12