67+21=x

Solution for 67+21=x equation:

Simplifying
67 + 21 = x

Combine like terms: 67 + 21 = 88
88 = x

Solving
88 = x

Solving for variable 'x'.

Move all terms containing x to the left, all other terms to the right.

Add '-1x' to each side of the equation.
88 + -1x = x + -1x

Combine like terms: x + -1x = 0
88 + -1x = 0

Add '-88' to each side of the equation.
88 + -88 + -1x = 0 + -88

Combine like terms: 88 + -88 = 0
0 + -1x = 0 + -88
-1x = 0 + -88

Combine like terms: 0 + -88 = -88
-1x = -88

Divide each side by '-1'.
x = 88

Simplifying
x = 88