2^3x-1=128

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Solution for 2^3x-1=128 equation: 



2^3x-1=128

We move all terms to the left:

2^3x-1-(128)=0

We add all the numbers together, and all the variables

2^3x-129=0

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

2^3x=129

x=129/1

x=129

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