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-2.3x+4.2x=15.01
We move all terms to the left:
-2.3x+4.2x-(15.01)=0
We add all the numbers together, and all the variables
1.9x-15.01=0
We move all terms containing x to the left, all other terms to the right
1.9x=15.01
x=15.01/1.9
x=7+1/1.1111111111111
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