6x-7y=-42 eching

$$6 x - 7 y = - 42$$

x uchun yechish

$$x=\frac{7\left(y-6\right)}{6}$$

Chiziqli tenglamalarni yechish bo'yicha qadamlar

7y ni ikki tarafga qo’shing.

$$6x=-42+7y$$

Tenglama standart shaklda.

$$6x=7y-42$$

Ikki tarafini 6 ga bo‘ling.

$$\frac{6x}{6}=\frac{7y-42}{6}$$

6 ga bo'lish 6 ga ko'paytirishni bekor qiladi.

$$x=\frac{7y-42}{6}$$

-42+7y ni 6 ga bo'lish.

$$x=\frac{7y}{6}-7$$

y uchun yechish

$$y=\frac{6\left(x+7\right)}{7}$$

Chiziqli tenglamalarni yechish bo'yicha qadamlar

Ikkala tarafdan 6x ni ayirish.

$$-7y=-42-6x$$

Tenglama standart shaklda.

$$-7y=-6x-42$$

Ikki tarafini -7 ga bo‘ling.

$$\frac{-7y}{-7}=\frac{-6x-42}{-7}$$

-7 ga bo'lish -7 ga ko'paytirishni bekor qiladi.

$$y=\frac{-6x-42}{-7}$$

-42-6x ni -7 ga bo'lish.

$$y=\frac{6x}{7}+6$$