M+9=18

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Solution for M+9=18 equation: 


Simplifying
M + 9 = 18

Reorder the terms:
9 + M = 18

Solving
9 + M = 18

Solving for variable 'M'.

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

Add '-9' to each side of the equation.
9 + -9 + M = 18 + -9

Combine like terms: 9 + -9 = 0
0 + M = 18 + -9
M = 18 + -9

Combine like terms: 18 + -9 = 9
M = 9

Simplifying
M = 9

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