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3(d+12)=-84d
We simplify the equation to the form, which is simple to understand
3(d+12)=-84d
Reorder the terms in parentheses
+(+3d+36)=-84d
Remove unnecessary parentheses
+3d+36=-84d
We move all terms containing d to the left and all other terms to the right.
+3d+84d=-36
We simplify left and right side of the equation.
+87d=-36
We divide both sides of the equation by 87 to get d.
d=-0.413793103448
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