d-4+d=8d-(-12)

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Solution for d-4+d=8d-(-12) equation: 



d-4+d=8d-(-12)

We move all terms to the left:

d-4+d-(8d-(-12))=0

We add all the numbers together, and all the variables

2d-(8d-(-12))-4=0



We calculate terms in parentheses: -(8d-(-12)), so:

8d-(-12)

We add all the numbers together, and all the variables

8d+12

Back to the equation:

-(8d+12)



We get rid of parentheses

2d-8d-12-4=0

We add all the numbers together, and all the variables

-6d-16=0

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

-6d=16

d=16/-6

d=-2+2/3

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