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(2*10^6)x=4*10^-7
We move all terms to the left:
(2*10^6)x-(4*10^-7)=0
We add all the numbers together, and all the variables
(2*10^6)x-7-4.0E=0
We multiply parentheses
20x^7-7-4.0E=0
We do not support expression: x^7
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