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7^-8x=7^2x+5
We move all terms to the left:
7^-8x-(7^2x+5)=0
We add all the numbers together, and all the variables
-8x-(7^2x+5)=0
We get rid of parentheses
-8x-7^2x-5=0
We move all terms containing x to the left, all other terms to the right
-8x-7^2x=5
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