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4-z/3=8
We move all terms to the left:
4-z/3-(8)=0
We add all the numbers together, and all the variables
-z/3-4=0
We multiply all the terms by the denominator
-z-4*3=0
We add all the numbers together, and all the variables
-1z-12=0
We move all terms containing z to the left, all other terms to the right
-z=12
z=12/-1
z=-12
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