2x-y=-4 eching

$$2x-y=-4$$

x uchun yechish

$$x=\frac{y-4}{2}$$

Chiziqli tenglamalarni yechish bo'yicha qadamlar

y ni ikki tarafga qo’shing.

$$2x=-4+y$$

Tenglama standart shaklda.

$$2x=y-4$$

Ikki tarafini 2 ga bo‘ling.

$$\frac{2x}{2}=\frac{y-4}{2}$$

2 ga bo'lish 2 ga ko'paytirishni bekor qiladi.

$$x=\frac{y-4}{2}$$

-4+y ni 2 ga bo'lish.

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

y uchun yechish

$$y=2\left(x+2\right)$$

Chiziqli tenglamalarni yechish bo'yicha qadamlar

Ikkala tarafdan 2x ni ayirish.

$$-y=-4-2x$$

Tenglama standart shaklda.

$$-y=-2x-4$$

Ikki tarafini -1 ga bo‘ling.

$$\frac{-y}{-1}=\frac{-2x-4}{-1}$$

-1 ga bo'lish -1 ga ko'paytirishni bekor qiladi.

$$y=\frac{-2x-4}{-1}$$

-4-2x ni -1 ga bo'lish.

$$y=2x+4$$