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-3.7=z-8
We move all terms to the left:
-3.7-(z-8)=0
We get rid of parentheses
-z+8-3.7=0
We add all the numbers together, and all the variables
-1z+4.3=0
We move all terms containing z to the left, all other terms to the right
-z=-4.3
z=-4.3/-1
z=4+0.3/1
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