4=(-7+5d)-7d

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Solution for 4=(-7+5d)-7d equation: 



4=(-7+5d)-7d

We move all terms to the left:

4-((-7+5d)-7d)=0

We add all the numbers together, and all the variables

-((5d-7)-7d)+4=0



We calculate terms in parentheses: -((5d-7)-7d), so:

(5d-7)-7d

We add all the numbers together, and all the variables

-7d+(5d-7)

We get rid of parentheses

-7d+5d-7

We add all the numbers together, and all the variables

-2d-7

Back to the equation:

-(-2d-7)



We get rid of parentheses

2d+7+4=0

We add all the numbers together, and all the variables

2d+11=0

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

2d=-11

d=-11/2

d=-5+1/2

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