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.25d-16.6=2.24d
We move all terms to the left:
.25d-16.6-(2.24d)=0
We add all the numbers together, and all the variables
.25d-(+2.24d)-16.6=0
We get rid of parentheses
.25d-2.24d-16.6=0
We add all the numbers together, and all the variables
-1.99d-16.6=0
We move all terms containing d to the left, all other terms to the right
-1.99d=16.6
d=16.6/-1.99
d=-8+0.68/1.99
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