(x+25)*80%=14 eching

$$(x+25) \times 80 \% =14$$

x uchun yechish

$$x = -\frac{15}{2} = -7\frac{1}{2} = -7,5$$

Chiziqli tenglamalarni yechish bo'yicha qadamlar

\frac{80}{100} ulushini 20 ni chiqarib, bekor qilish hisobiga eng past shartlarga kamaytiring.

$$\left(x+25\right)\times \frac{4}{5}=14$$

x+25 ga \frac{4}{5} ni ko'paytirish orqali distributiv xususiyatdan foydalanish.

$$x\times \frac{4}{5}+25\times \frac{4}{5}=14$$

25\times \frac{4}{5} ni yagona kasrga aylantiring.

$$x\times \frac{4}{5}+\frac{25\times 4}{5}=14$$

100 hosil qilish uchun 25 va 4 ni ko'paytirish.

$$x\times \frac{4}{5}+\frac{100}{5}=14$$

20 ni olish uchun 100 ni 5 ga bo‘ling.

$$x\times \frac{4}{5}+20=14$$

Ikkala tarafdan 20 ni ayirish.

$$x\times \frac{4}{5}=14-20$$

-6 olish uchun 14 dan 20 ni ayirish.

$$x\times \frac{4}{5}=-6$$

Ikki tarafini \frac{5}{4} va teskari kasri \frac{4}{5} ga ko‘paytiring.

$$x=-6\times \frac{5}{4}$$

-6\times \frac{5}{4} ni yagona kasrga aylantiring.

$$x=\frac{-6\times 5}{4}$$

-30 hosil qilish uchun -6 va 5 ni ko'paytirish.

$$x=\frac{-30}{4}$$

\frac{-30}{4} ulushini 2 ni chiqarib, bekor qilish hisobiga eng past shartlarga kamaytiring.

$$x=-\frac{15}{2}$$