-3/2-4/3y=-2/5 eching

$$- \frac { 3 } { 2 } - \frac { 4 } { 3 } y = - \frac { 2 } { 5 }$$

y uchun yechish

$$y=-\frac{33}{40}=-0,825$$

Chiziqli tenglamalarni yechish bo'yicha qadamlar

\frac{3}{2} ni ikki tarafga qo’shing.

$$-\frac{4}{3}y=-\frac{2}{5}+\frac{3}{2}$$

5 va 2 ning eng kichik umumiy karralisi 10 ga teng. -\frac{2}{5} va \frac{3}{2} ni 10 maxraj bilan kasrlarga aylantirib oling.

$$-\frac{4}{3}y=-\frac{4}{10}+\frac{15}{10}$$

-\frac{4}{10} va \frac{15}{10} da bir xil maxraji bor, ularning suratini qo‘shish orqali qo‘shing.

$$-\frac{4}{3}y=\frac{-4+15}{10}$$

11 olish uchun -4 va 15'ni qo'shing.

$$-\frac{4}{3}y=\frac{11}{10}$$

Ikki tarafini -\frac{3}{4} va teskari kasri -\frac{4}{3} ga ko‘paytiring.

$$y=\frac{11}{10}\left(-\frac{3}{4}\right)$$

Suratni maxrajga va maxrajini suratga ko‘paytirish orqali \frac{11}{10} ni -\frac{3}{4} ga ko‘paytiring.

$$y=\frac{11\left(-3\right)}{10\times 4}$$

\frac{11\left(-3\right)}{10\times 4} kasridagi ko‘paytirishlarni bajaring.

$$y=\frac{-33}{40}$$

\frac{-33}{40} kasri manfiy belgini olib tashlash bilan -\frac{33}{40} sifatida qayta yozilishi mumkin.

$$y=-\frac{33}{40}$$