x+6+x+9=4x+30 eching

$$x + 6 + x + 9 = 4 x + 30$$

x uchun yechish

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

Chiziqli tenglamalarni yechish bo'yicha qadamlar

2x ni olish uchun x va x ni birlashtirish.

$$2x+6+9=4x+30$$

15 olish uchun 6 va 9'ni qo'shing.

$$2x+15=4x+30$$

Ikkala tarafdan 4x ni ayirish.

$$2x+15-4x=30$$

-2x ni olish uchun 2x va -4x ni birlashtirish.

$$-2x+15=30$$

Ikkala tarafdan 15 ni ayirish.

$$-2x=30-15$$

15 olish uchun 30 dan 15 ni ayirish.

$$-2x=15$$

Ikki tarafini -2 ga bo‘ling.

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

\frac{15}{-2} kasri manfiy belgini olib tashlash bilan -\frac{15}{2} sifatida qayta yozilishi mumkin.

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