21=.7m+7

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Solution for 21=.7m+7 equation:


Simplifying
21 = 0.7m + 7

Reorder the terms:
21 = 7 + 0.7m

Solving
21 = 7 + 0.7m

Solving for variable 'm'.

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

Add '-0.7m' to each side of the equation.
21 + -0.7m = 7 + 0.7m + -0.7m

Combine like terms: 0.7m + -0.7m = 0.0
21 + -0.7m = 7 + 0.0
21 + -0.7m = 7

Add '-21' to each side of the equation.
21 + -21 + -0.7m = 7 + -21

Combine like terms: 21 + -21 = 0
0 + -0.7m = 7 + -21
-0.7m = 7 + -21

Combine like terms: 7 + -21 = -14
-0.7m = -14

Divide each side by '-0.7'.
m = 20

Simplifying
m = 20

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