Question

[Pham Trong Bach]

Tìm x ∈ Z, biết:

$$\begin{gathered} a) \frac{-5}{19}+\frac{3}{19}<\frac{x}{19}\le \frac{13}{19}+\frac{-11}{19} \\ b) \frac{-7}{8}+\frac{5}{6}<\frac{x}{24}\le \frac{5}{8}+\frac{-5}{12} \end{gathered}$$

Answer 1

[Cao Minh Tâm]

-1 ≤ x ≤ 5 mà x ∈ Z. Do đó: x ∈ { -1 ; 0 ; 1 ; 2 ; 3 ; 4 ; 5 }