12-69=x

Solution for 12-69=x equation:

Simplifying
12 + -69 = x

Combine like terms: 12 + -69 = -57
-57 = x

Solving
-57 = 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.
-57 + -1x = x + -1x

Combine like terms: x + -1x = 0
-57 + -1x = 0

Add '57' to each side of the equation.
-57 + 57 + -1x = 0 + 57

Combine like terms: -57 + 57 = 0
0 + -1x = 0 + 57
-1x = 0 + 57

Combine like terms: 0 + 57 = 57
-1x = 57

Divide each side by '-1'.
x = -57

Simplifying
x = -57