2=z-(-7)

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Solution for 2=z-(-7) equation: 



2=z-(-7)

We move all terms to the left:

2-(z-(-7))=0



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

z-(-7)

We add all the numbers together, and all the variables

z+7

Back to the equation:

-(z+7)



We get rid of parentheses

-z-7+2=0

We add all the numbers together, and all the variables

-1z-5=0

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

-z=5

z=5/-1

z=-5

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