4^x-7=15

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Solution for 4^x-7=15 equation: 



4^x-7=15

We move all terms to the left:

4^x-7-(15)=0

We add all the numbers together, and all the variables

4^x-22=0

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

4^x=22

x=22/1

x=22

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