n:8x+7x+6=90 eching

$$n : 8 x + 7 x + 6 = 90$$

n uchun yechish

$$n=-56+\frac{672}{x}$$

$$x\neq 0$$

Chiziqli tenglamalarni yechish bo'yicha qadamlar

Tenglamaning ikkala tarafini 8 ga ko'paytirish.

$$nx+56x+48=720$$

Ikkala tarafdan 56x ni ayirish.

$$nx+48=720-56x$$

Ikkala tarafdan 48 ni ayirish.

$$nx=720-56x-48$$

672 olish uchun 720 dan 48 ni ayirish.

$$nx=672-56x$$

Tenglama standart shaklda.

$$xn=672-56x$$

Ikki tarafini x ga bo‘ling.

$$\frac{xn}{x}=\frac{672-56x}{x}$$

x ga bo'lish x ga ko'paytirishni bekor qiladi.

$$n=\frac{672-56x}{x}$$

672-56x ni x ga bo'lish.

$$n=-56+\frac{672}{x}$$

x uchun yechish

$$x=\frac{672}{n+56}$$

$$n\neq -56$$

Chiziqli tenglamalarni yechish bo'yicha qadamlar

Tenglamaning ikkala tarafini 8 ga ko'paytirish.

$$nx+56x+48=720$$

Ikkala tarafdan 48 ni ayirish.

$$nx+56x=720-48$$

672 olish uchun 720 dan 48 ni ayirish.

$$nx+56x=672$$

x'ga ega bo'lgan barcha shartlarni birlashtirish.

$$\left(n+56\right)x=672$$

Ikki tarafini n+56 ga bo‘ling.

$$\frac{\left(n+56\right)x}{n+56}=\frac{672}{n+56}$$

n+56 ga bo'lish n+56 ga ko'paytirishni bekor qiladi.

$$x=\frac{672}{n+56}$$