d=-4/5*12/13-(-3/5)*5/13= eching

$$d = - \frac { 4 } { 5 } \times \frac { 12 } { 13 } - ( - \frac { 3 } { 5 } ) \times \frac { 5 } { 13 } =$$

d uchun yechish

$$d=-\frac{33}{65}\approx -0,507692308$$

Chiziqli tenglamalarni yechish bo'yicha qadamlar

Suratni maxrajga va maxrajini suratga ko‘paytirish orqali -\frac{4}{5} ni \frac{12}{13} ga ko‘paytiring.

$$d=\frac{-4\times 12}{5\times 13}-\left(-\frac{3}{5}\times \frac{5}{13}\right)$$

\frac{-4\times 12}{5\times 13} kasridagi ko‘paytirishlarni bajaring.

$$d=\frac{-48}{65}-\left(-\frac{3}{5}\times \frac{5}{13}\right)$$

\frac{-48}{65} kasri manfiy belgini olib tashlash bilan -\frac{48}{65} sifatida qayta yozilishi mumkin.

$$d=-\frac{48}{65}-\left(-\frac{3}{5}\times \frac{5}{13}\right)$$

Suratni maxrajga va maxrajini suratga ko‘paytirish orqali -\frac{3}{5} ni \frac{5}{13} ga ko‘paytiring.

$$d=-\frac{48}{65}-\frac{-3\times 5}{5\times 13}$$

Surat va maxrajdagi ikkala 5 ni qisqartiring.

$$d=-\frac{48}{65}-\frac{-3}{13}$$

\frac{-3}{13} kasri manfiy belgini olib tashlash bilan -\frac{3}{13} sifatida qayta yozilishi mumkin.

$$d=-\frac{48}{65}-\left(-\frac{3}{13}\right)$$

-\frac{3}{13} ning teskarisi \frac{3}{13} ga teng.

$$d=-\frac{48}{65}+\frac{3}{13}$$

65 va 13 ning eng kichik umumiy karralisi 65 ga teng. -\frac{48}{65} va \frac{3}{13} ni 65 maxraj bilan kasrlarga aylantirib oling.

$$d=-\frac{48}{65}+\frac{15}{65}$$

-\frac{48}{65} va \frac{15}{65} da bir xil maxraji bor, ularning suratini qo‘shish orqali qo‘shing.

$$d=\frac{-48+15}{65}$$

-33 olish uchun -48 va 15'ni qo'shing.

$$d=-\frac{33}{65}$$

d'ni tayinlash

$$d≔-\frac{33}{65}$$