3^(x+2)=15-3^x

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Solution for 3^(x+2)=15-3^x equation: 



3^(x+2)=15-3^x

We move all terms to the left:

3^(x+2)-(15-3^x)=0

We get rid of parentheses

3^(x+2)+3^x-15=0

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

3^(x+2)+3^x=15

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