42=8m-m

Solution for 42=8m-m equation:

Simplifying
42 = 8m + -1m

Combine like terms: 8m + -1m = 7m
42 = 7m

Solving
42 = 7m

Solving for variable 'm'.

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

Add '-7m' to each side of the equation.
42 + -7m = 7m + -7m

Combine like terms: 7m + -7m = 0
42 + -7m = 0

Add '-42' to each side of the equation.
42 + -42 + -7m = 0 + -42

Combine like terms: 42 + -42 = 0
0 + -7m = 0 + -42
-7m = 0 + -42

Combine like terms: 0 + -42 = -42
-7m = -42

Divide each side by '-7'.
m = 6

Simplifying
m = 6