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7.9x=142.2
We move all terms to the left:
7.9x-(142.2)=0
We add all the numbers together, and all the variables
7.9x-142.2=0
We move all terms containing x to the left, all other terms to the right
7.9x=142.2
x=142.2/7.9
x=17+1/1
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