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-84=d/3
We simplify the equation to the form, which is simple to understand
-84=d/3
Simplifying:
-84=0.333333333333d
We move all terms containing d to the left and all other terms to the right.
-0.333333333333d=+84
We simplify left and right side of the equation.
-0.333333333333d=+84
We divide both sides of the equation by -00.333333333333 to get d.
d=-252
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