2^(4х-1) + 2^(4х-2) - 2^(4х-3)=160,
2^(4x-3) (2^2 + 2 - 1)=160,
5 * 2^(4x-3)=160,
2^(4x-3)=32,
2^(4x-3)=2^5,
4x-3=5,
4x=8,
x=2.
