Question

Реши уравнение: x/19-7 целых 9/19=15 целых 13/19 + 4 целых 17/19
Ответ: x=?​

Answer 1

$\frac{x}{19} -7 \frac{9}{19} =15 \frac{13}{19} + 4 \frac{17}{19}$

$\frac{x}{19} -7 \frac{9}{19} =19 \frac{30}{19}$

$\frac{x}{19} -7 \frac{9}{19} =20 \frac{11}{19}$

$\frac{x}{19} =20 \frac{11}{19}+7 \frac{9}{19}$

$\frac{x}{19} =27 \frac{20}{19}$

$\frac{x}{19} = \frac{27*19+20}{19}$

$\frac{x}{19} = \frac{533}{19}$

$x=533$