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3^x-7=1/729
We move all terms to the left:
3^x-7-(1/729)=0
We add all the numbers together, and all the variables
3^x-7-(+1/729)=0
We get rid of parentheses
3^x-7-1/729=0
We multiply all the terms by the denominator
3^x*729-1-7*729=0
We add all the numbers together, and all the variables
3^x*729-5104=0
Wy multiply elements
2187x-5104=0
We move all terms containing x to the left, all other terms to the right
2187x=5104
x=5104/2187
x=2+730/2187
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