2d-12=7d+8

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Solution for 2d-12=7d+8 equation: 



2d-12=7d+8

We move all terms to the left:

2d-12-(7d+8)=0

We get rid of parentheses

2d-7d-8-12=0

We add all the numbers together, and all the variables

-5d-20=0

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

-5d=20

d=20/-5

d=-4

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