Question

[Gray Fullbuster]

Cho A = 6n-1/3n+2

Tìm n để A = 2/3

Answer 1

[Bùi Thế Hào]

(6n-1)/(3n+2) = 2/3

<=> 3(6n-1)=2(3n+2)

<=> 18n-3=6n+4

<=> 12n=7 => n=7/2

Đs: n=7/2

Answer 2

[nguyen yen nhi]

Minh thich Fairy Tail lam