-9+-3=m

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Solution for -9+-3=m equation:


Simplifying
-9 + -3 = m

Combine like terms: -9 + -3 = -12
-12 = m

Solving
-12 = 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 = m + -1m

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

Add '12' to each side of the equation.
-12 + 12 + -1m = 0 + 12

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

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

Divide each side by '-1'.
m = -12

Simplifying
m = -12

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