10z-9=91

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Solution for 10z-9=91 equation: 



10z-9=91

We move all terms to the left:

10z-9-(91)=0

We add all the numbers together, and all the variables

10z-100=0

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

10z=100

z=100/10

z=10

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