21=0.75+m

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Solution for 21=0.75+m equation:


Simplifying
21 = 0.75 + m

Solving
21 = 0.75 + m

Solving for variable 'm'.

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

Add '-1m' to each side of the equation.
21 + -1m = 0.75 + m + -1m

Combine like terms: m + -1m = 0
21 + -1m = 0.75 + 0
21 + -1m = 0.75

Add '-21' to each side of the equation.
21 + -21 + -1m = 0.75 + -21

Combine like terms: 21 + -21 = 0
0 + -1m = 0.75 + -21
-1m = 0.75 + -21

Combine like terms: 0.75 + -21 = -20.25
-1m = -20.25

Divide each side by '-1'.
m = 20.25

Simplifying
m = 20.25

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