177-99=x

Solution for 177-99=x equation:

Simplifying
177 + -99 = x

Combine like terms: 177 + -99 = 78
78 = x

Solving
78 = 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.
78 + -1x = x + -1x

Combine like terms: x + -1x = 0
78 + -1x = 0

Add '-78' to each side of the equation.
78 + -78 + -1x = 0 + -78

Combine like terms: 78 + -78 = 0
0 + -1x = 0 + -78
-1x = 0 + -78

Combine like terms: 0 + -78 = -78
-1x = -78

Divide each side by '-1'.
x = 78

Simplifying
x = 78