14x*90%-x=390 eching

$$14x \times 90 \% -x=390$$

x uchun yechish

$$x = \frac{975}{29} = 33\frac{18}{29} \approx 33,620689655$$

Chiziqli tenglamalarni yechish bo'yicha qadamlar

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

$$14x\times \frac{9}{10}-x=390$$

14\times \frac{9}{10} ni yagona kasrga aylantiring.

$$\frac{14\times 9}{10}x-x=390$$

126 hosil qilish uchun 14 va 9 ni ko'paytirish.

$$\frac{126}{10}x-x=390$$

\frac{126}{10} ulushini 2 ni chiqarib, bekor qilish hisobiga eng past shartlarga kamaytiring.

$$\frac{63}{5}x-x=390$$

\frac{58}{5}x ni olish uchun \frac{63}{5}x va -x ni birlashtirish.

$$\frac{58}{5}x=390$$

Ikki tarafini \frac{5}{58} va teskari kasri \frac{58}{5} ga ko‘paytiring.

$$x=390\times \frac{5}{58}$$

390\times \frac{5}{58} ni yagona kasrga aylantiring.

$$x=\frac{390\times 5}{58}$$

1950 hosil qilish uchun 390 va 5 ni ko'paytirish.

$$x=\frac{1950}{58}$$

\frac{1950}{58} ulushini 2 ni chiqarib, bekor qilish hisobiga eng past shartlarga kamaytiring.

$$x=\frac{975}{29}$$