4(2)^x-1=8

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Solution for 4(2)^x-1=8 equation: 



4(2)^x-1=8

We move all terms to the left:

4(2)^x-1-(8)=0

We add all the numbers together, and all the variables

42^x-9=0

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

42^x=9

x=9/1

x=9

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