42=42+m

Solution for 42=42+m equation:

Simplifying
42 = 42 + m

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

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

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

Solving
0 = 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.
0 + -1m = m + -1m
Remove the zero:
-1m = m + -1m

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

Divide each side by '-1'.
m = 0

Simplifying
m = 0