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2z/9+1=10
We move all terms to the left:
2z/9+1-(10)=0
We add all the numbers together, and all the variables
2z/9-9=0
We multiply all the terms by the denominator
2z-9*9=0
We add all the numbers together, and all the variables
2z-81=0
We move all terms containing z to the left, all other terms to the right
2z=81
z=81/2
z=40+1/2
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