7m-21=5m+5

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Solution for 7m-21=5m+5 equation:


Simplifying
7m + -21 = 5m + 5

Reorder the terms:
-21 + 7m = 5m + 5

Reorder the terms:
-21 + 7m = 5 + 5m

Solving
-21 + 7m = 5 + 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 + 7m + -5m = 5 + 5m + -5m

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

Combine like terms: 5m + -5m = 0
-21 + 2m = 5 + 0
-21 + 2m = 5

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

Combine like terms: -21 + 21 = 0
0 + 2m = 5 + 21
2m = 5 + 21

Combine like terms: 5 + 21 = 26
2m = 26

Divide each side by '2'.
m = 13

Simplifying
m = 13

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