x=2/5 0,8b⁹:8b³=0,1b⁹⁻³=0,1b⁶
1) 2/x=5
x=2/5
2) (0.8b^9)/(8b^3)=b^9/(10b^3)=(b^3*b^6)/(10b^3)=0.1*b^6
x=2/5 0,8b⁹:8b³=0,1b⁹⁻³=0,1b⁶
1) 2/x=5
x=2/5
2) (0.8b^9)/(8b^3)=b^9/(10b^3)=(b^3*b^6)/(10b^3)=0.1*b^6