m+7+7=21

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Solution for m+7+7=21 equation: 


Simplifying
m + 7 + 7 = 21

Reorder the terms:
7 + 7 + m = 21

Combine like terms: 7 + 7 = 14
14 + m = 21

Solving
14 + m = 21

Solving for variable 'm'.

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

Add '-14' to each side of the equation.
14 + -14 + m = 21 + -14

Combine like terms: 14 + -14 = 0
0 + m = 21 + -14
m = 21 + -14

Combine like terms: 21 + -14 = 7
m = 7

Simplifying
m = 7

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