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d-199=7d+5
We simplify the equation to the form, which is simple to understand
d-199=7d+5
We move all terms containing d to the left and all other terms to the right.
+1d-7d=+5+199
We simplify left and right side of the equation.
-6d=+204
We divide both sides of the equation by -6 to get d.
d=-34
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