-1+z/2=9

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Solution for -1+z/2=9 equation: 



-1+z/2=9

We move all terms to the left:

-1+z/2-(9)=0

We add all the numbers together, and all the variables

z/2-10=0

We multiply all the terms by the denominator


z-10*2=0

We add all the numbers together, and all the variables

z-20=0

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

z=20

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