Chủ đề:

Luyện tập tổng hợp

Câu hỏi:

Write a paragraph ( ~ 100 words ) to talk about the advantages / disadvantages of strict discipline for young people by schools or parents . Give reasons for your answer .

x + 3y + 2z = 1

5x - y + 3z = 16

-3x + 7y + z = -14