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7x=20.3
We move all terms to the left:
7x-(20.3)=0
We add all the numbers together, and all the variables
7x-20.3=0
We move all terms containing x to the left, all other terms to the right
7x=20.3
x=20.3/7
x=2+4.8461538461538/5.3846153846154
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