69=m-42

Solution for 69=m-42 equation:

Simplifying
69 = m + -42

Reorder the terms:
69 = -42 + m

Solving
69 = -42 + m

Solving for variable 'm'.

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

Add '-1m' to each side of the equation.
69 + -1m = -42 + m + -1m

Combine like terms: m + -1m = 0
69 + -1m = -42 + 0
69 + -1m = -42

Add '-69' to each side of the equation.
69 + -69 + -1m = -42 + -69

Combine like terms: 69 + -69 = 0
0 + -1m = -42 + -69
-1m = -42 + -69

Combine like terms: -42 + -69 = -111
-1m = -111

Divide each side by '-1'.
m = 111

Simplifying
m = 111