-5m+-9=21

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Solution for -5m+-9=21 equation:


Simplifying
-5m + -9 = 21

Reorder the terms:
-9 + -5m = 21

Solving
-9 + -5m = 21

Solving for variable 'm'.

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

Add '9' to each side of the equation.
-9 + 9 + -5m = 21 + 9

Combine like terms: -9 + 9 = 0
0 + -5m = 21 + 9
-5m = 21 + 9

Combine like terms: 21 + 9 = 30
-5m = 30

Divide each side by '-5'.
m = -6

Simplifying
m = -6

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