7(v-1)=7v+4-4(-3v-1) eching

$$7 ( v - 1 ) = 7 v + 4 - 4 ( - 3 v - 1 )$$

v uchun yechish

$$v = -\frac{5}{4} = -1\frac{1}{4} = -1,25$$

Chiziqli tenglamalarni yechish bo'yicha qadamlar

7 ga v-1 ni ko'paytirish orqali distributiv xususiyatdan foydalanish.

$$7v-7=7v+4-4\left(-3v-1\right)$$

-4 ga -3v-1 ni ko'paytirish orqali distributiv xususiyatdan foydalanish.

$$7v-7=7v+4+12v+4$$

19v ni olish uchun 7v va 12v ni birlashtirish.

$$7v-7=19v+4+4$$

8 olish uchun 4 va 4'ni qo'shing.

$$7v-7=19v+8$$

Ikkala tarafdan 19v ni ayirish.

$$7v-7-19v=8$$

-12v ni olish uchun 7v va -19v ni birlashtirish.

$$-12v-7=8$$

7 ni ikki tarafga qo’shing.

$$-12v=8+7$$

15 olish uchun 8 va 7'ni qo'shing.

$$-12v=15$$

Ikki tarafini -12 ga bo‘ling.

$$v=\frac{15}{-12}$$

\frac{15}{-12} ulushini 3 ni chiqarib, bekor qilish hisobiga eng past shartlarga kamaytiring.

$$v=-\frac{5}{4}$$