3+d=2(3+3+d)+3 eching

$$3 + d = 2 ( 3 + 3 + d ) + 3$$

d uchun yechish

$$d=-12$$

Chiziqli tenglamalarni yechish bo'yicha qadamlar

6 olish uchun 3 va 3'ni qo'shing.

$$3+d=2\left(6+d\right)+3$$

2 ga 6+d ni ko'paytirish orqali distributiv xususiyatdan foydalanish.

$$3+d=12+2d+3$$

15 olish uchun 12 va 3'ni qo'shing.

$$3+d=15+2d$$

Ikkala tarafdan 2d ni ayirish.

$$3+d-2d=15$$

-d ni olish uchun d va -2d ni birlashtirish.

$$3-d=15$$

Ikkala tarafdan 3 ni ayirish.

$$-d=15-3$$

12 olish uchun 15 dan 3 ni ayirish.

$$-d=12$$

Ikkala tarafini -1 ga ko‘paytiring.

$$d=-12$$