7.3(x-0.8)=6.3(x+0.2)
7.3x - 5.84=6.3x+1.26
7.3x-6.3x=1.26+5.84
x=7.1
4⁵ = (2²)⁵ = 2¹⁰
8¹¹ = (2³)¹¹ = 2³³
2¹⁰*2³³ : 2⁴⁰ = 2⁴³: 2⁴⁰ = 2³ = 8