5m-21=-2m

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Solution for 5m-21=-2m equation:


Simplifying
5m + -21 = -2m

Reorder the terms:
-21 + 5m = -2m

Solving
-21 + 5m = -2m

Solving for variable 'm'.

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

Add '2m' to each side of the equation.
-21 + 5m + 2m = -2m + 2m

Combine like terms: 5m + 2m = 7m
-21 + 7m = -2m + 2m

Combine like terms: -2m + 2m = 0
-21 + 7m = 0

Add '21' to each side of the equation.
-21 + 21 + 7m = 0 + 21

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

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

Divide each side by '7'.
m = 3

Simplifying
m = 3

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