(1/2)^(x-1)=128

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Solution for (1/2)^(x-1)=128 equation: 



(1/2)^(x-1)=128

We move all terms to the left:

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



Domain of the equation: 2)^(x-1)!=0

x∈R



We add all the numbers together, and all the variables

(+1/2)^(x-1)-128=0

We multiply all the terms by the denominator


(+1-128*2)^(x-1)=0

We add all the numbers together, and all the variables

(-255)^(x-1)=0

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