M+6=12+15

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Solution for M+6=12+15 equation: 


Simplifying
M + 6 = 12 + 15

Reorder the terms:
6 + M = 12 + 15

Combine like terms: 12 + 15 = 27
6 + M = 27

Solving
6 + M = 27

Solving for variable 'M'.

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

Add '-6' to each side of the equation.
6 + -6 + M = 27 + -6

Combine like terms: 6 + -6 = 0
0 + M = 27 + -6
M = 27 + -6

Combine like terms: 27 + -6 = 21
M = 21

Simplifying
M = 21

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