3(2-5m)=81

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Solution for 3(2-5m)=81 equation: 


Simplifying
3(2 + -5m) = 81
(2 * 3 + -5m * 3) = 81
(6 + -15m) = 81

Solving
6 + -15m = 81

Solving for variable 'm'.

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

Add '-6' to each side of the equation.
6 + -6 + -15m = 81 + -6

Combine like terms: 6 + -6 = 0
0 + -15m = 81 + -6
-15m = 81 + -6

Combine like terms: 81 + -6 = 75
-15m = 75

Divide each side by '-15'.
m = -5

Simplifying
m = -5

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