2^y-4=15

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Solution for 2^y-4=15 equation: 



2^y-4=15

We move all terms to the left:

2^y-4-(15)=0

We add all the numbers together, and all the variables

2^y-19=0

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

2^y=19

y=19/1

y=19

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