M+3=7m-21

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Solution for M+3=7m-21 equation: 


Simplifying
M + 3 = 7m + -21

Reorder the terms:
3 + M = 7m + -21

Reorder the terms:
3 + M = -21 + 7m

Solving
3 + M = -21 + 7m

Solving for variable 'M'.

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

Add '-3' to each side of the equation.
3 + -3 + M = -21 + -3 + 7m

Combine like terms: 3 + -3 = 0
0 + M = -21 + -3 + 7m
M = -21 + -3 + 7m

Combine like terms: -21 + -3 = -24
M = -24 + 7m

Simplifying
M = -24 + 7m

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