2m-21=-28+9m

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Solution for 2m-21=-28+9m equation:


Simplifying
2m + -21 = -28 + 9m

Reorder the terms:
-21 + 2m = -28 + 9m

Solving
-21 + 2m = -28 + 9m

Solving for variable 'm'.

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

Add '-9m' to each side of the equation.
-21 + 2m + -9m = -28 + 9m + -9m

Combine like terms: 2m + -9m = -7m
-21 + -7m = -28 + 9m + -9m

Combine like terms: 9m + -9m = 0
-21 + -7m = -28 + 0
-21 + -7m = -28

Add '21' to each side of the equation.
-21 + 21 + -7m = -28 + 21

Combine like terms: -21 + 21 = 0
0 + -7m = -28 + 21
-7m = -28 + 21

Combine like terms: -28 + 21 = -7
-7m = -7

Divide each side by '-7'.
m = 1

Simplifying
m = 1

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