7d+20-3d=9d+50

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Solution for 7d+20-3d=9d+50 equation:


7d+20-3d=9d+50

We simplify the equation to the form, which is simple to understand 
7d+20-3d=9d+50

We move all terms containing d to the left and all other terms to the right. 
+7d-3d-9d=+50-20

We simplify left and right side of the equation. 
-5d=+30

We divide both sides of the equation by -5 to get d. 
d=-6

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