.5=d-(-20)

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Solution for .5=d-(-20) equation: 



.5=d-(-20)

We move all terms to the left:

.5-(d-(-20))=0

We add all the numbers together, and all the variables

-(d-(-20))+0.5=0



We calculate terms in parentheses: -(d-(-20)), so:

d-(-20)

We add all the numbers together, and all the variables

d+20

Back to the equation:

-(d+20)



We get rid of parentheses

-d-20+0.5=0

We add all the numbers together, and all the variables

-1d-19.5=0

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

-d=19.5

d=19.5/-1

d=-19+0.5/1

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