M-30=6-15

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Solution for M-30=6-15 equation: 


Simplifying
M + -30 = 6 + -15

Reorder the terms:
-30 + M = 6 + -15

Combine like terms: 6 + -15 = -9
-30 + M = -9

Solving
-30 + M = -9

Solving for variable 'M'.

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

Add '30' to each side of the equation.
-30 + 30 + M = -9 + 30

Combine like terms: -30 + 30 = 0
0 + M = -9 + 30
M = -9 + 30

Combine like terms: -9 + 30 = 21
M = 21

Simplifying
M = 21

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