80=-10(z-1)

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Solution for 80=-10(z-1) equation:



80=-10(z-1)
We move all terms to the left:
80-(-10(z-1))=0
We calculate terms in parentheses: -(-10(z-1)), so:
-10(z-1)
We multiply parentheses
-10z+10
Back to the equation:
-(-10z+10)
We get rid of parentheses
10z-10+80=0
We add all the numbers together, and all the variables
10z+70=0
We move all terms containing z to the left, all other terms to the right
10z=-70
z=-70/10
z=-7

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