5d+7-1=-20+7d

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Solution for 5d+7-1=-20+7d equation: 



5d+7-1=-20+7d

We move all terms to the left:

5d+7-1-(-20+7d)=0

We add all the numbers together, and all the variables

5d-(7d-20)+7-1=0

We add all the numbers together, and all the variables

5d-(7d-20)+6=0

We get rid of parentheses

5d-7d+20+6=0

We add all the numbers together, and all the variables

-2d+26=0

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

-2d=-26

d=-26/-2

d=+13

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