2/5+x*7/9=211/15 eching

$$\frac { 2 } { 5 } + x \times \frac { 7 } { 9 } = 2 \frac { 11 } { 15 }$$

x uchun yechish

$$x=3$$

Chiziqli tenglamalarni yechish bo'yicha qadamlar

Tenglamaning ikkala tarafini 45 ga, 5,9,15 ning eng kichik karralisiga ko‘paytiring.

$$18+45x\times \frac{7}{9}=3\left(2\times 15+11\right)$$

45\times \frac{7}{9} ni yagona kasrga aylantiring.

$$18+\frac{45\times 7}{9}x=3\left(2\times 15+11\right)$$

315 hosil qilish uchun 45 va 7 ni ko'paytirish.

$$18+\frac{315}{9}x=3\left(2\times 15+11\right)$$

35 ni olish uchun 315 ni 9 ga bo‘ling.

$$18+35x=3\left(2\times 15+11\right)$$

30 hosil qilish uchun 2 va 15 ni ko'paytirish.

$$18+35x=3\left(30+11\right)$$

41 olish uchun 30 va 11'ni qo'shing.

$$18+35x=3\times 41$$

123 hosil qilish uchun 3 va 41 ni ko'paytirish.

$$18+35x=123$$

Ikkala tarafdan 18 ni ayirish.

$$35x=123-18$$

105 olish uchun 123 dan 18 ni ayirish.

$$35x=105$$

Ikki tarafini 35 ga bo‘ling.

$$x=\frac{105}{35}$$

3 ni olish uchun 105 ni 35 ga bo‘ling.

$$x=3$$