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6^2x+3=216^x-2
We move all terms to the left:
6^2x+3-(216^x-2)=0
We get rid of parentheses
6^2x-216^x+2+3=0
We add all the numbers together, and all the variables
6^2x-216^x+5=0
We move all terms containing x to the left, all other terms to the right
6^2x-216^x=-5
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