8-77=x

Solution for 8-77=x equation:

Simplifying
8 + -77 = x

Combine like terms: 8 + -77 = -69
-69 = x

Solving
-69 = 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.
-69 + -1x = x + -1x

Combine like terms: x + -1x = 0
-69 + -1x = 0

Add '69' to each side of the equation.
-69 + 69 + -1x = 0 + 69

Combine like terms: -69 + 69 = 0
0 + -1x = 0 + 69
-1x = 0 + 69

Combine like terms: 0 + 69 = 69
-1x = 69

Divide each side by '-1'.
x = -69

Simplifying
x = -69