Giúp t bài với Giang ơi

Tìm các cặp số nguyên (x,y) biết;

2xy - y + 19 = 0

Bài đọc hiểu í

Trung didn't go to school last Sunday

-> Trung was....

Literature interes my brother a lot

-> My brother is...

This library contains over 30 million books

-> There...

I'm not as good at Math as my brother

-> My brother is...

Shall I make you a cup of coffee?

-> Do you...?

Tính hợp lý: \(\frac{21^{11}.5-7^{11}.3^{12}}{7^{10}.3^9+21^{10}}\)

1.I saw Lan and Ha at the party yesterday

2.We enjoyed the time very much at the party last night