(d-10)+(2d-20)=

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Solution for (d-10)+(2d-20)= equation:



(d-10)+(2d-20)=
We move all terms to the left:
(d-10)+(2d-20)-()=0
We add all the numbers together, and all the variables
(d-10)+(2d-20)=0
We get rid of parentheses
d+2d-10-20=0
We add all the numbers together, and all the variables
3d-30=0
We move all terms containing d to the left, all other terms to the right
3d=30
d=30/3
d=10

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