-8-5d+7d=72

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Solution for -8-5d+7d=72 equation: 


Simplifying
-8 + -5d + 7d = 72

Combine like terms: -5d + 7d = 2d
-8 + 2d = 72

Solving
-8 + 2d = 72

Solving for variable 'd'.

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

Add '8' to each side of the equation.
-8 + 8 + 2d = 72 + 8

Combine like terms: -8 + 8 = 0
0 + 2d = 72 + 8
2d = 72 + 8

Combine like terms: 72 + 8 = 80
2d = 80

Divide each side by '2'.
d = 40

Simplifying
d = 40

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