21-5M=31

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Solution for 21-5M=31 equation: 


Simplifying
21 + -5M = 31

Solving
21 + -5M = 31

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 + -5M = 31 + -21

Combine like terms: 21 + -21 = 0
0 + -5M = 31 + -21
-5M = 31 + -21

Combine like terms: 31 + -21 = 10
-5M = 10

Divide each side by '-5'.
M = -2

Simplifying
M = -2

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