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7.2+2.3x=3.2
We move all terms to the left:
7.2+2.3x-(3.2)=0
We add all the numbers together, and all the variables
2.3x+4=0
We move all terms containing x to the left, all other terms to the right
2.3x=-4
x=-4/2.3
x=-1+1/1.35294117647
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