81=z/9+74

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Solution for 81=z/9+74 equation: 



81=z/9+74

We move all terms to the left:

81-(z/9+74)=0

We get rid of parentheses

-z/9-74+81=0

We multiply all the terms by the denominator


-z-74*9+81*9=0

We add all the numbers together, and all the variables

-1z+63=0

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

-z=-63

z=-63/-1

z=+63

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