12^-x=4^x+3

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Solution for 12^-x=4^x+3 equation: 



12^-x=4^x+3

We move all terms to the left:

12^-x-(4^x+3)=0

We add all the numbers together, and all the variables

-1x-(4^x+3)=0

We get rid of parentheses

-1x-4^x-3=0

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

-1x-4^x=3

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