5-4m=-21

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Solution for 5-4m=-21 equation: 


Simplifying
5 + -4m = -21

Solving
5 + -4m = -21

Solving for variable 'm'.

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

Add '-5' to each side of the equation.
5 + -5 + -4m = -21 + -5

Combine like terms: 5 + -5 = 0
0 + -4m = -21 + -5
-4m = -21 + -5

Combine like terms: -21 + -5 = -26
-4m = -26

Divide each side by '-4'.
m = 6.5

Simplifying
m = 6.5

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