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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