d-7d=-72

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Solution for d-7d=-72 equation: 


Simplifying
d + -7d = -72

Combine like terms: d + -7d = -6d
-6d = -72

Solving
-6d = -72

Solving for variable 'd'.

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

Divide each side by '-6'.
d = 12

Simplifying
d = 12

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