Simplifying
29 + -1x = 13

Solving
29 + -1x = 13

Solving for variable 'x'.

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

Add '-29' to each side of the equation.
29 + -29 + -1x = 13 + -29

Combine like terms: 29 + -29 = 0
0 + -1x = 13 + -29
-1x = 13 + -29

Combine like terms: 13 + -29 = -16
-1x = -16

Divide each side by '-1'.
x = 16

Simplifying
x = 16