m-(6+(-m-6))=y

Solution for m-(6+(-m-6))=y equation:

Simplifying
m + -1(6 + (-1m + -6)) = y

Reorder the terms:
m + -1(6 + (-6 + -1m)) = y

Remove parenthesis around (-6 + -1m)
m + -1(6 + -6 + -1m) = y

Combine like terms: 6 + -6 = 0
m + -1(0 + -1m) = y
m + -1(-1m) = y

Remove parenthesis around (-1m)
m + -1 * -1m = y

Multiply -1 * -1
m + 1m = y

Combine like terms: m + 1m = 2m
2m = y

Solving
2m = y

Solving for variable 'm'.

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

Divide each side by '2'.
m = 0.5y

Simplifying
m = 0.5y