3^x-1=18

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Solution for 3^x-1=18 equation: 



3^x-1=18

We move all terms to the left:

3^x-1-(18)=0

We add all the numbers together, and all the variables

3^x-19=0

We move all terms containing x to the left, all other terms to the right

3^x=19

x=19/1

x=19

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