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2(z-3)-8=-2
We move all terms to the left:
2(z-3)-8-(-2)=0
We add all the numbers together, and all the variables
2(z-3)-6=0
We multiply parentheses
2z-6-6=0
We add all the numbers together, and all the variables
2z-12=0
We move all terms containing z to the left, all other terms to the right
2z=12
z=12/2
z=6
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