8m-21=85

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Solution for 8m-21=85 equation: 


Simplifying
8m + -21 = 85

Reorder the terms:
-21 + 8m = 85

Solving
-21 + 8m = 85

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 + 8m = 85 + 21

Combine like terms: -21 + 21 = 0
0 + 8m = 85 + 21
8m = 85 + 21

Combine like terms: 85 + 21 = 106
8m = 106

Divide each side by '8'.
m = 13.25

Simplifying
m = 13.25

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