21-4m=1

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Solution for 21-4m=1 equation: 


Simplifying
21 + -4m = 1

Solving
21 + -4m = 1

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 + -4m = 1 + -21

Combine like terms: 21 + -21 = 0
0 + -4m = 1 + -21
-4m = 1 + -21

Combine like terms: 1 + -21 = -20
-4m = -20

Divide each side by '-4'.
m = 5

Simplifying
m = 5

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