Question

Розвʼяжи рівняння
3 9/14x-2 17/21x=1 1/9

Answer 1

Ответ:

х = 4/3

Пошаговое объяснение:

51/14х - 59/21х = 10/9

5/6х = 10/9

х = 4/3

або ж 1 1/3

Answer 2

Ответ:

$x=1\dfrac{5}{19}$

Пошаговое объяснение:

$3\dfrac{9}{14}x-2\dfrac{17}{21}x=1\dfrac{1}{19}\\\\\\\dfrac{51}{14}x-\dfrac{59}{21}x=\dfrac{20}{19}\\\\\\\dfrac{51 \times 3}{14 \times 3}x-\dfrac{59 \times 2}{21 \times 2}x=\dfrac{20}{19}\\\\\\\dfrac{153x-118x}{42}=\dfrac{20}{19}\\\\\\\dfrac{35x}{42}=\dfrac{20}{19}\\\\\\\dfrac{5x}{6}=\dfrac{20}{19}\\\\\\x=\dfrac{20}{19} \div \dfrac{5}{6}\\\\\\x=\dfrac{20}{19} \times \dfrac{6}{5}\\\\\\x=\dfrac{4}{19} \times \dfrac{6}{1}\\\\\\x=\dfrac{24}{19}\\\\\\\boxed{x=1\frac{5}{19}}$