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2z/7+3=8
We move all terms to the left:
2z/7+3-(8)=0
We add all the numbers together, and all the variables
2z/7-5=0
We multiply all the terms by the denominator
2z-5*7=0
We add all the numbers together, and all the variables
2z-35=0
We move all terms containing z to the left, all other terms to the right
2z=35
z=35/2
z=17+1/2
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