Question

Daca 7 supra 2 mai mic decat x supra 3 mai mic decat 15 supra 4

Answer 1

Răspuns:

$\frac{7}{2} < \frac{x}{3} < \frac{15}{4}$

$\frac{42}{12} < \frac{4x}{12} < \frac{45}{12}$

$42 < 4x < 45$

$\frac{42}{4} < x < \frac{45}{4}$