y + \(\dfrac{16}{9}\) = \(\dfrac{25}{9}\)
y = \(\dfrac{25}{9}\) - \(\dfrac{16}{9}\)
y = 1
ta có : y+\(\dfrac{4}{9}\)+\(\dfrac{8}{18}\)+\(\dfrac{12}{27}\)+\(\dfrac{16}{36}\)=\(\dfrac{25}{9}\)
⇒ y+\(\dfrac{16}{9}\)=\(\dfrac{25}{9}\)
⇒ y=\(\dfrac{25}{9}-\dfrac{16}{9}\)
⇒ y=1
Vậy y=1
Chúc bạn học tốt nha !
y + 16/9 = 25/9
y = 25/9 - 16/9
y = 1
Mong bạn tick cho