Question

3/8х+19=7/12х

срочно​

Answer 1

Объяснение:

$\frac{3}{8} x + 19 = \frac{7}{12} x \\ \frac{3}{8} x + 19 - \frac{7}{12} x = 0 \\ - \frac{5}{24} + 19 = 0 \\ - \frac{5}{54} x = - 19 \\ x = - 19( - \frac{24}{5} ) \\ x = \frac{ - 19( - 24)}{5} \\ x = \frac{456}{5} = 91 \frac{1}{5} = 91.2$

Answer 2

3/8 = 9/24 - доп. множ. 3

7/12 = 14/24 - доп. множ. 2

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3/8х + 19 = 7/12х

19 = 7/12х - 3/8х

19 = 14/24х - 9/24х

19 = 5/24х

х = 19 : 5/24

х = 19 · 24/5

х = 456/5

х = 91 целая 1/5

Ответ: 91 целая 1/5 (или 91,2 в десятичных дробях).