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3^2x+2=12.3^x-3
We move all terms to the left:
3^2x+2-(12.3^x-3)=0
We get rid of parentheses
3^2x-12.3^x+3+2=0
We add all the numbers together, and all the variables
3^2x-12.3^x+5=0
We move all terms containing x to the left, all other terms to the right
3^2x-12.3^x=-5
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