M-21=-2

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Solution for M-21=-2 equation: 


Simplifying
M + -21 = -2

Reorder the terms:
-21 + M = -2

Solving
-21 + M = -2

Solving for variable 'M'.

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

Add '21' to each side of the equation.
-21 + 21 + M = -2 + 21

Combine like terms: -21 + 21 = 0
0 + M = -2 + 21
M = -2 + 21

Combine like terms: -2 + 21 = 19
M = 19

Simplifying
M = 19

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