-12+8d-19d=20-7d=

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Solution for -12+8d-19d=20-7d= equation: 



-12+8d-19d=20-7d=

We move all terms to the left:

-12+8d-19d-(20-7d)=0

We add all the numbers together, and all the variables

8d-19d-(-7d+20)-12=0

We add all the numbers together, and all the variables

-11d-(-7d+20)-12=0

We get rid of parentheses

-11d+7d-20-12=0

We add all the numbers together, and all the variables

-4d-32=0

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

-4d=32

d=32/-4

d=-8

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