-15-5d+8d=-12

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Solution for -15-5d+8d=-12 equation: 


Simplifying
-15 + -5d + 8d = -12

Combine like terms: -5d + 8d = 3d
-15 + 3d = -12

Solving
-15 + 3d = -12

Solving for variable 'd'.

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

Add '15' to each side of the equation.
-15 + 15 + 3d = -12 + 15

Combine like terms: -15 + 15 = 0
0 + 3d = -12 + 15
3d = -12 + 15

Combine like terms: -12 + 15 = 3
3d = 3

Divide each side by '3'.
d = 1

Simplifying
d = 1

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