Đáp án:
Giải thích các bước giải:
a,
$\frac{-5}{17}$+ $\frac{3}{17}$ $\leq$ $\frac{x}{17}$ $\leq$ $\frac{13}{17}$+ $\frac{-11}{17}$$⇒$ $\frac{-2}{17}$ $\leq$ $\frac{x}{17}$ $\leq$ $\frac{2}{17}$$⇒$$-2 $$\leq$$x$ $\leq$$2$ $⇒$$x$∈{-2,-1,0,1,2}
b, Đề
⇒$\frac{20}{24}$+ $\frac{-21}{24}$ $\leq$$\frac{x}{24}$ $\frac{-10}{24}$+$\frac{15}{24}$$⇒$ $\frac{1}{24}$ $\leq$ $\frac{x}{24}$ $\leq$ $\frac{5}{24}$$⇒$$1$ $\leq$$x$$\leq$$5$$⇒$$x$$∈{1,2,3,4,5}$
