7+7m-1=9m+21-5m

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Solution for 7+7m-1=9m+21-5m equation:


Simplifying
7 + 7m + -1 = 9m + 21 + -5m

Reorder the terms:
7 + -1 + 7m = 9m + 21 + -5m

Combine like terms: 7 + -1 = 6
6 + 7m = 9m + 21 + -5m

Reorder the terms:
6 + 7m = 21 + 9m + -5m

Combine like terms: 9m + -5m = 4m
6 + 7m = 21 + 4m

Solving
6 + 7m = 21 + 4m

Solving for variable 'm'.

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

Add '-4m' to each side of the equation.
6 + 7m + -4m = 21 + 4m + -4m

Combine like terms: 7m + -4m = 3m
6 + 3m = 21 + 4m + -4m

Combine like terms: 4m + -4m = 0
6 + 3m = 21 + 0
6 + 3m = 21

Add '-6' to each side of the equation.
6 + -6 + 3m = 21 + -6

Combine like terms: 6 + -6 = 0
0 + 3m = 21 + -6
3m = 21 + -6

Combine like terms: 21 + -6 = 15
3m = 15

Divide each side by '3'.
m = 5

Simplifying
m = 5

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