-9(8+m)-13=-25

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Solution for -9(8+m)-13=-25 equation: 


Simplifying
-9(8 + m) + -13 = -25
(8 * -9 + m * -9) + -13 = -25
(-72 + -9m) + -13 = -25

Reorder the terms:
-72 + -13 + -9m = -25

Combine like terms: -72 + -13 = -85
-85 + -9m = -25

Solving
-85 + -9m = -25

Solving for variable 'm'.

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

Add '85' to each side of the equation.
-85 + 85 + -9m = -25 + 85

Combine like terms: -85 + 85 = 0
0 + -9m = -25 + 85
-9m = -25 + 85

Combine like terms: -25 + 85 = 60
-9m = 60

Divide each side by '-9'.
m = -6.666666667

Simplifying
m = -6.666666667

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