2x+40%=72 eching

$$2 x + 40 \% = 72$$

x uchun yechish

$$x = \frac{179}{5} = 35\frac{4}{5} = 35,8$$

Chiziqli tenglamalarni yechish bo'yicha qadamlar

\frac{40}{100} ulushini 20 ni chiqarib, bekor qilish hisobiga eng past shartlarga kamaytiring.

$$2x+\frac{2}{5}=72$$

Ikkala tarafdan \frac{2}{5} ni ayirish.

$$2x=72-\frac{2}{5}$$

72 ni \frac{360}{5} kasrga o‘giring.

$$2x=\frac{360}{5}-\frac{2}{5}$$

\frac{360}{5} va \frac{2}{5} da bir xil maxraji bor, ularning suratini ayirish orqali ayiring.

$$2x=\frac{360-2}{5}$$

358 olish uchun 360 dan 2 ni ayirish.

$$2x=\frac{358}{5}$$

Ikki tarafini 2 ga bo‘ling.

$$x=\frac{\frac{358}{5}}{2}$$

\frac{\frac{358}{5}}{2} ni yagona kasrga aylantiring.

$$x=\frac{358}{5\times 2}$$

10 hosil qilish uchun 5 va 2 ni ko'paytirish.

$$x=\frac{358}{10}$$

\frac{358}{10} ulushini 2 ni chiqarib, bekor qilish hisobiga eng past shartlarga kamaytiring.

$$x=\frac{179}{5}$$