3. Решим уравнения:
- а) $$ \frac{11}{12} - y = \frac{11}{24} $$
$$ y = \frac{11}{12} - \frac{11}{24} $$
$$ y = \frac{11 \cdot 2}{12 \cdot 2} - \frac{11}{24} $$
$$ y = \frac{22}{24} - \frac{11}{24} $$
$$ y = \frac{22 - 11}{24} $$
$$ y = \frac{11}{24} $$
- б) $$ 5,86m + 1,4m = 76,23 $$
$$ 7,26m = 76,23 $$
$$ m = \frac{76,23}{7,26} $$
$$ m = 10,5 $$
Ответ: а) $$ y = \frac{11}{24} $$, б) $$ m = 10,5 $$