-12=m-(-3)

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


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

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

Reorder the terms:
-12 = 3 + m

Solving
-12 = 3 + 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.
-12 + -1m = 3 + m + -1m

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

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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