91=7z-(-14)

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Solution for 91=7z-(-14) equation: 



91=7z-(-14)

We move all terms to the left:

91-(7z-(-14))=0



We calculate terms in parentheses: -(7z-(-14)), so:

7z-(-14)

We add all the numbers together, and all the variables

7z+14

Back to the equation:

-(7z+14)



We get rid of parentheses

-7z-14+91=0

We add all the numbers together, and all the variables

-7z+77=0

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

-7z=-77

z=-77/-7

z=+11

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