Question

88+x=3(x+22)

Answer 1

Are we trying to find x?

Answer 2

If yes, here's a Hint:
Its Higher than 10 but less than 20.

Answer 3

Just substitute one of them numbers into the problem for X and which ever one comes out to a true equation is your answer.

Answer 4

88 + x = 3(x + 22)
use the distributive property.....multiply 3 by everything in the parenthesis to get rid of the parenthesis
88 + x = 3*x + 3*22
88 + x = 3x + 66 -- subtract 88 from both sides
88 - 88 + x = 3x + 66 - 88 -- combine like terms
x = 3x - 22 -- subtract 3x from both sides
x - 3x = 3x - 3x - 22 -- combine like terms
-2x = -22 -- divide both sides by -2
-2x/-2 = -22/-2
x = 11

you can even check your answer..
88 + x = 3(x + 22)
88 + 11 = 3(11 + 22)
99 = 3(33)
99 = 99 (correct)

x = 11

I tried to put down all steps so you could understand, but if you have any questions, please ask