(m+42)-23=10

Solution for (m+42)-23=10 equation:

Simplifying
(m + 42) + -23 = 10

Reorder the terms:
(42 + m) + -23 = 10

Remove parenthesis around (42 + m)
42 + m + -23 = 10

Reorder the terms:
42 + -23 + m = 10

Combine like terms: 42 + -23 = 19
19 + m = 10

Solving
19 + m = 10

Solving for variable 'm'.

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

Add '-19' to each side of the equation.
19 + -19 + m = 10 + -19

Combine like terms: 19 + -19 = 0
0 + m = 10 + -19
m = 10 + -19

Combine like terms: 10 + -19 = -9
m = -9

Simplifying
m = -9