123=-x+173

Solution for 123=-x+173 equation:

Simplifying
123 = -1x + 173

Reorder the terms:
123 = 173 + -1x

Solving
123 = 173 + -1x

Solving for variable 'x'.

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

Add 'x' to each side of the equation.
123 + x = 173 + -1x + x

Combine like terms: -1x + x = 0
123 + x = 173 + 0
123 + x = 173

Add '-123' to each side of the equation.
123 + -123 + x = 173 + -123

Combine like terms: 123 + -123 = 0
0 + x = 173 + -123
x = 173 + -123

Combine like terms: 173 + -123 = 50
x = 50

Simplifying
x = 50