12-(-m)=-3

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Solution for 12-(-m)=-3 equation:


Simplifying
12 + -1(-1m) = -3

Remove parenthesis around (-1m)
12 + -1 * -1m = -3

Multiply -1 * -1
12 + 1m = -3

Solving
12 + 1m = -3

Solving for variable 'm'.

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

Add '-12' to each side of the equation.
12 + -12 + 1m = -3 + -12

Combine like terms: 12 + -12 = 0
0 + 1m = -3 + -12
1m = -3 + -12

Combine like terms: -3 + -12 = -15
1m = -15

Divide each side by '1'.
m = -15

Simplifying
m = -15

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