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2^x2^-3x^+84=16^3^-5x
We move all terms to the left:
2^x2^-3x^+84-(16^3^-5x)=0
We add all the numbers together, and all the variables
-3x+2^x2^-(16^3^-5x)+84=0
We get rid of parentheses
-3x+2^x2^+5x+84-16^3^=0
We add all the numbers together, and all the variables
2x+2^x2^=0
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