-2m+21=5m

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


Simplifying
-2m + 21 = 5m

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

Solving
21 + -2m = 5m

Solving for variable 'm'.

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

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

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

Combine like terms: 5m + -5m = 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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