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-2.2=0.3z=3-0.z-0.8z
We move all terms to the left:
-2.2-(0.3z)=0
We add all the numbers together, and all the variables
-(+0.3z)-2.2=0
We get rid of parentheses
-0.3z-2.2=0
We move all terms containing z to the left, all other terms to the right
-0.3z=2.2
z=2.2/-0.3
z=-7+0.1/0.3
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