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0.99d=10+89d
We move all terms to the left:
0.99d-(10+89d)=0
We add all the numbers together, and all the variables
0.99d-(89d+10)=0
We get rid of parentheses
0.99d-89d-10=0
We add all the numbers together, and all the variables
-88.01d-10=0
We move all terms containing d to the left, all other terms to the right
-88.01d=10
d=10/-88.01
d=-5/44.005
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