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0.30(75.2)+0.70x=80
We move all terms to the left:
0.30(75.2)+0.70x-(80)=0
determiningTheFunctionDomain 0.70x-80+0.30(75.2)=0
We add all the numbers together, and all the variables
0.70x-57.44=0
We move all terms containing x to the left, all other terms to the right
0.70x=57.44
x=57.44/0.70
x=82+0.039999999999999/0.70
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