20+20-12d=18d-20

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Solution for 20+20-12d=18d-20 equation:



20+20-12d=18d-20
We move all terms to the left:
20+20-12d-(18d-20)=0
We add all the numbers together, and all the variables
-12d-(18d-20)+40=0
We get rid of parentheses
-12d-18d+20+40=0
We add all the numbers together, and all the variables
-30d+60=0
We move all terms containing d to the left, all other terms to the right
-30d=-60
d=-60/-30
d=+2

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