Question

решите уравнение.....

Answer 1

$\frac{x}{12}+ \frac{x}{2} +x= \frac{19}{4} \\ \\ \frac{x+6x+12x}{12}= \frac{19}{4} \\ \\ \frac{19x}{12}= \frac{19}{4} \\ \\ x= \frac{19}{4}: \frac{19}{12} \\ \\ x= \frac{19}{4}\cdot \frac{12}{19} \\ \\ x=3$