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4.2x-4.14=7.2
We move all terms to the left:
4.2x-4.14-(7.2)=0
We add all the numbers together, and all the variables
4.2x-11.34=0
We move all terms containing x to the left, all other terms to the right
4.2x=11.34
x=11.34/4.2
x=2+1/1.4285714285714
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