-81=-8m+7

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Solution for -81=-8m+7 equation:


Simplifying
-81 = -8m + 7

Reorder the terms:
-81 = 7 + -8m

Solving
-81 = 7 + -8m

Solving for variable 'm'.

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

Add '8m' to each side of the equation.
-81 + 8m = 7 + -8m + 8m

Combine like terms: -8m + 8m = 0
-81 + 8m = 7 + 0
-81 + 8m = 7

Add '81' to each side of the equation.
-81 + 81 + 8m = 7 + 81

Combine like terms: -81 + 81 = 0
0 + 8m = 7 + 81
8m = 7 + 81

Combine like terms: 7 + 81 = 88
8m = 88

Divide each side by '8'.
m = 11

Simplifying
m = 11

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