7^2x-5=1/343^-x

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Solution for 7^2x-5=1/343^-x equation: 



7^2x-5=1/343^-x

We move all terms to the left:

7^2x-5-(1/343^-x)=0



Domain of the equation: 343^-x)!=0

x∈R



We get rid of parentheses

7^2x+x-5-1/343^=0

We multiply all the terms by the denominator


7^2x*343^+x*343^-1-5*343^=0

We add all the numbers together, and all the variables

7^2x*343^+x*343^=0

Wy multiply elements

2401x^3+343x^2=0

We do not support expression: x^3

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