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3^(2x+1)=4^x-2
We move all terms to the left:
3^(2x+1)-(4^x-2)=0
We get rid of parentheses
3^(2x+1)-4^x+2=0
We move all terms containing x to the left, all other terms to the right
3^(2x+1)-4^x=-2
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