7d+10=3d-10

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Solution for 7d+10=3d-10 equation: 



7d+10=3d-10

We move all terms to the left:

7d+10-(3d-10)=0

We get rid of parentheses

7d-3d+10+10=0

We add all the numbers together, and all the variables

4d+20=0

We move all terms containing d to the left, all other terms to the right

4d=-20

d=-20/4

d=-5

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