2x-5(x+3)=4/7 eching

$$2 x - 5 ( x + 3 ) = \frac { 4 } { 7 }$$

x uchun yechish

$$x = -\frac{109}{21} = -5\frac{4}{21} \approx -5,19047619$$

Chiziqli tenglamalarni yechish bo'yicha qadamlar

-5 ga x+3 ni ko'paytirish orqali distributiv xususiyatdan foydalanish.

$$2x-5x-15=\frac{4}{7}$$

-3x ni olish uchun 2x va -5x ni birlashtirish.

$$-3x-15=\frac{4}{7}$$

15 ni ikki tarafga qo’shing.

$$-3x=\frac{4}{7}+15$$

15 ni \frac{105}{7} kasrga o‘giring.

$$-3x=\frac{4}{7}+\frac{105}{7}$$

\frac{4}{7} va \frac{105}{7} da bir xil maxraji bor, ularning suratini qo‘shish orqali qo‘shing.

$$-3x=\frac{4+105}{7}$$

109 olish uchun 4 va 105'ni qo'shing.

$$-3x=\frac{109}{7}$$

Ikki tarafini -3 ga bo‘ling.

$$x=\frac{\frac{109}{7}}{-3}$$

\frac{\frac{109}{7}}{-3} ni yagona kasrga aylantiring.

$$x=\frac{109}{7\left(-3\right)}$$

-21 hosil qilish uchun 7 va -3 ni ko'paytirish.

$$x=\frac{109}{-21}$$

\frac{109}{-21} kasri manfiy belgini olib tashlash bilan -\frac{109}{21} sifatida qayta yozilishi mumkin.

$$x=-\frac{109}{21}$$