21=21m-15

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Solution for 21=21m-15 equation:


Simplifying
21 = 21m + -15

Reorder the terms:
21 = -15 + 21m

Solving
21 = -15 + 21m

Solving for variable 'm'.

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

Add '-21m' to each side of the equation.
21 + -21m = -15 + 21m + -21m

Combine like terms: 21m + -21m = 0
21 + -21m = -15 + 0
21 + -21m = -15

Add '-21' to each side of the equation.
21 + -21 + -21m = -15 + -21

Combine like terms: 21 + -21 = 0
0 + -21m = -15 + -21
-21m = -15 + -21

Combine like terms: -15 + -21 = -36
-21m = -36

Divide each side by '-21'.
m = 1.714285714

Simplifying
m = 1.714285714

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