8m-9-m=-30

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Solution for 8m-9-m=-30 equation:


Simplifying
8m + -9 + -1m = -30

Reorder the terms:
-9 + 8m + -1m = -30

Combine like terms: 8m + -1m = 7m
-9 + 7m = -30

Solving
-9 + 7m = -30

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 + 7m = -30 + 9

Combine like terms: -9 + 9 = 0
0 + 7m = -30 + 9
7m = -30 + 9

Combine like terms: -30 + 9 = -21
7m = -21

Divide each side by '7'.
m = -3

Simplifying
m = -3

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