3^x2-42=3^-x

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Solution for 3^x2-42=3^-x equation: 



3^x2-42=3^-x

We move all terms to the left:

3^x2-42-(3^-x)=0

We get rid of parentheses

3^x2+x-42-3^=0

We add all the numbers together, and all the variables

x+3^x2=0

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