2^-x+1=0.25

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Solution for 2^-x+1=0.25 equation: 



2^-x+1=0.25

We move all terms to the left:

2^-x+1-(0.25)=0

We add all the numbers together, and all the variables

-1x+1.8408964152537=0

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

-x=-1.8408964152537

x=-1.8408964152537/-1

x=1+0.8408964152537/1

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