x*2+4y=7 eching

$$x \times 2 + 4 y = 7$$

x uchun yechish

$$x=\frac{7}{2}-2y$$

Chiziqli tenglamalarni yechish bo'yicha qadamlar

Ikkala tarafdan 4y ni ayirish.

$$x\times 2=7-4y$$

Tenglama standart shaklda.

$$2x=7-4y$$

Ikki tarafini 2 ga bo‘ling.

$$\frac{2x}{2}=\frac{7-4y}{2}$$

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

$$x=\frac{7-4y}{2}$$

7-4y ni 2 ga bo'lish.

$$x=\frac{7}{2}-2y$$

y uchun yechish

$$y=-\frac{x}{2}+\frac{7}{4}$$

Chiziqli tenglamalarni yechish bo'yicha qadamlar

Ikkala tarafdan x\times 2 ni ayirish.

$$4y=7-x\times 2$$

-2 hosil qilish uchun -1 va 2 ni ko'paytirish.

$$4y=7-2x$$

Ikki tarafini 4 ga bo‘ling.

$$\frac{4y}{4}=\frac{7-2x}{4}$$

4 ga bo'lish 4 ga ko'paytirishni bekor qiladi.

$$y=\frac{7-2x}{4}$$

7-2x ni 4 ga bo'lish.

$$y=-\frac{x}{2}+\frac{7}{4}$$