3^x^-^7=81

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Solution for 3^x^-^7=81 equation: 



3^x^-^7=81

We move all terms to the left:

3^x^-^7-(81)=0

determiningTheFunctionDomain
3^x^-81-^7=0

We add all the numbers together, and all the variables

3^x^=0

x=0/1

x=0

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