(2d=-4)

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Solution for (2d=-4) equation: 



(2d=-4)

We move all terms to the left:

(2d-(-4))=0



We calculate terms in parentheses: +(2d-(-4)), so:

2d-(-4)

We add all the numbers together, and all the variables

2d+4

Back to the equation:

+(2d+4)



We get rid of parentheses

2d+4=0

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

2d=-4

d=-4/2

d=-2

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