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2=d-81/5
We move all terms to the left:
2-(d-81/5)=0
We add all the numbers together, and all the variables
-(+d-81/5)+2=0
We get rid of parentheses
-d+2+81/5=0
We multiply all the terms by the denominator
-d*5+81+2*5=0
We add all the numbers together, and all the variables
-d*5+91=0
Wy multiply elements
-5d+91=0
We move all terms containing d to the left, all other terms to the right
-5d=-91
d=-91/-5
d=18+1/5
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