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(7*10^4)x=4x*10^2
We move all terms to the left:
(7*10^4)x-(4x*10^2)=0
We multiply parentheses
70x^5-(4x*10^2)=0
We get rid of parentheses
70x^5-4x*10^2=0
We do not support expression: x^5
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