7x-1/2y=30 eching

$$7x- \frac{ 1 }{ 2 } y=30$$

x uchun yechish

$$x=\frac{y+60}{14}$$

Chiziqli tenglamalarni yechish bo'yicha qadamlar

\frac{1}{2}y ni ikki tarafga qo’shing.

$$7x=30+\frac{1}{2}y$$

Tenglama standart shaklda.

$$7x=\frac{y}{2}+30$$

Ikki tarafini 7 ga bo‘ling.

$$\frac{7x}{7}=\frac{\frac{y}{2}+30}{7}$$

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

$$x=\frac{\frac{y}{2}+30}{7}$$

30+\frac{y}{2} ni 7 ga bo'lish.

$$x=\frac{y}{14}+\frac{30}{7}$$

y uchun yechish

$$y=14x-60$$

Chiziqli tenglamalarni yechish bo'yicha qadamlar

Ikkala tarafdan 7x ni ayirish.

$$-\frac{1}{2}y=30-7x$$

Ikkala tarafini -2 ga ko‘paytiring.

$$\frac{-\frac{1}{2}y}{-\frac{1}{2}}=\frac{30-7x}{-\frac{1}{2}}$$

-\frac{1}{2} ga bo'lish -\frac{1}{2} ga ko'paytirishni bekor qiladi.

$$y=\frac{30-7x}{-\frac{1}{2}}$$

30-7x ni -\frac{1}{2} ga bo'lish 30-7x ga k'paytirish -\frac{1}{2} ga qaytarish.

$$y=14x-60$$