7m+3=5m+21

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Solution for 7m+3=5m+21 equation:


Simplifying
7m + 3 = 5m + 21

Reorder the terms:
3 + 7m = 5m + 21

Reorder the terms:
3 + 7m = 21 + 5m

Solving
3 + 7m = 21 + 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.
3 + 7m + -5m = 21 + 5m + -5m

Combine like terms: 7m + -5m = 2m
3 + 2m = 21 + 5m + -5m

Combine like terms: 5m + -5m = 0
3 + 2m = 21 + 0
3 + 2m = 21

Add '-3' to each side of the equation.
3 + -3 + 2m = 21 + -3

Combine like terms: 3 + -3 = 0
0 + 2m = 21 + -3
2m = 21 + -3

Combine like terms: 21 + -3 = 18
2m = 18

Divide each side by '2'.
m = 9

Simplifying
m = 9

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