Simplifying
23 + -1x = 13
Solving
23 + -1x = 13
Solving for variable 'x'.
Move all terms containing x to the left, all other terms to the right.
Add '-23' to each side of the equation.
23 + -23 + -1x = 13 + -23
Combine like terms: 23 + -23 = 0
0 + -1x = 13 + -23
-1x = 13 + -23
Combine like terms: 13 + -23 = -10
-1x = -10
Divide each side by '-1'.
x = 10
Simplifying
x = 10