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0.3z=0.09
We move all terms to the left:
0.3z-(0.09)=0
We add all the numbers together, and all the variables
0.3z-0.09=0
We move all terms containing z to the left, all other terms to the right
0.3z=0.09
z=0.09/0.3
z=0.09/0.3
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