3^x-4=9^x-28

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Solution for 3^x-4=9^x-28 equation: 



3^x-4=9^x-28

We move all terms to the left:

3^x-4-(9^x-28)=0

We get rid of parentheses

3^x-9^x+28-4=0

We add all the numbers together, and all the variables

3^x-9^x+24=0

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

3^x-9^x=-24

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