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-2z=-17.84
We move all terms to the left:
-2z-(-17.84)=0
We add all the numbers together, and all the variables
-2z+17.84=0
We move all terms containing z to the left, all other terms to the right
-2z=-17.84
z=-17.84/-2
z=8+1/1.0869565217391
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