10z-1=9z-20

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Solution for 10z-1=9z-20 equation: 



10z-1=9z-20

We move all terms to the left:

10z-1-(9z-20)=0

We get rid of parentheses

10z-9z+20-1=0

We add all the numbers together, and all the variables

z+19=0

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

z=-19

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