4^2x-1=128

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Solution for 4^2x-1=128 equation: 



4^2x-1=128

We move all terms to the left:

4^2x-1-(128)=0

We add all the numbers together, and all the variables

4^2x-129=0

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

4^2x=129

x=129/1

x=129

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