69+69=x

Solution for 69+69=x equation:

Simplifying
69 + 69 = x

Combine like terms: 69 + 69 = 138
138 = x

Solving
138 = 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.
138 + -1x = x + -1x

Combine like terms: x + -1x = 0
138 + -1x = 0

Add '-138' to each side of the equation.
138 + -138 + -1x = 0 + -138

Combine like terms: 138 + -138 = 0
0 + -1x = 0 + -138
-1x = 0 + -138

Combine like terms: 0 + -138 = -138
-1x = -138

Divide each side by '-1'.
x = 138

Simplifying
x = 138