Question

Tìm số nguyên x, biết:

\(\dfrac{-5}{9}\)<\(\dfrac{x}{36}\)<\(\dfrac{-2}{4}\)

Answer 1

Quy đồng :

\(\dfrac{-20}{36}< \dfrac{x}{36}< \dfrac{-18}{36}\)

=> x = -19

Answer 2

\(-20< x< -18\Rightarrow x\in\left\{-19\right\}\)