7/5x*90%-x=890 eching

$$\frac { 7 } { 5 } x \times 90 \% - x = 890$$

x uchun yechish

$$x = \frac{44500}{13} = 3423\frac{1}{13} \approx 3423,076923077$$

Chiziqli tenglamalarni yechish bo'yicha qadamlar

\frac{90}{100} ulushini 10 ni chiqarib, bekor qilish hisobiga eng past shartlarga kamaytiring.

$$\frac{7}{5}x\times \frac{9}{10}-x=890$$

Suratni maxrajga va maxrajini suratga ko‘paytirish orqali \frac{7}{5} ni \frac{9}{10} ga ko‘paytiring.

$$\frac{7\times 9}{5\times 10}x-x=890$$

\frac{7\times 9}{5\times 10} kasridagi ko‘paytirishlarni bajaring.

$$\frac{63}{50}x-x=890$$

\frac{13}{50}x ni olish uchun \frac{63}{50}x va -x ni birlashtirish.

$$\frac{13}{50}x=890$$

Ikki tarafini \frac{50}{13} va teskari kasri \frac{13}{50} ga ko‘paytiring.

$$x=890\times \frac{50}{13}$$

890\times \frac{50}{13} ni yagona kasrga aylantiring.

$$x=\frac{890\times 50}{13}$$

44500 hosil qilish uchun 890 va 50 ni ko'paytirish.

$$x=\frac{44500}{13}$$