4-4m=-21

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Solution for 4-4m=-21 equation: 


Simplifying
4 + -4m = -21

Solving
4 + -4m = -21

Solving for variable 'm'.

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

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

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

Combine like terms: -21 + -4 = -25
-4m = -25

Divide each side by '-4'.
m = 6.25

Simplifying
m = 6.25

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