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z/3-1.4=2.8
We move all terms to the left:
z/3-1.4-(2.8)=0
We add all the numbers together, and all the variables
z/3-4.2=0
We multiply all the terms by the denominator
z-(4.2)*3=0
We add all the numbers together, and all the variables
z-12.6=0
We move all terms containing z to the left, all other terms to the right
z=12.6
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