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5^-4x=8^-x+4
We move all terms to the left:
5^-4x-(8^-x+4)=0
We add all the numbers together, and all the variables
-4x-(8^-x+4)=0
We get rid of parentheses
-4x+x-4-8^=0
We add all the numbers together, and all the variables
-3x=0
x=0/-3
x=0
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