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![class=](https://pt-static.z-dn.net/files/d02/b070201b642682270adeeddabccb7cbb.jpg)
2^2x+1×4^3x+1=8^x-1
2^2x+1×2^6x+2=2^3x-3
2^8x+3=2^3x-3
8x+3=3x-3
8x-3x=-3-3
5x= -6
x= -6/5
A) {-6/5}