C=25000+3q*iCu eching

$$C = 25000 + 3 q \cdot i Cu$$

C uchun yechish

$$C=\frac{25000}{1-3iqu}$$

$$u=0\text{ or }q\neq \frac{-i}{3u}$$

Chiziqli tenglamalarni yechish bo'yicha qadamlar

3i hosil qilish uchun 3 va i ni ko'paytirish.

$$C=25000+3iqCu$$

Ikkala tarafdan 3iqCu ni ayirish.

$$C-3iqCu=25000$$

C'ga ega bo'lgan barcha shartlarni birlashtirish.

$$\left(1-3iqu\right)C=25000$$

Ikki tarafini 1-3iqu ga bo‘ling.

$$\frac{\left(1-3iqu\right)C}{1-3iqu}=\frac{25000}{1-3iqu}$$

1-3iqu ga bo'lish 1-3iqu ga ko'paytirishni bekor qiladi.

$$C=\frac{25000}{1-3iqu}$$

q uchun yechish

$$\left\{\begin{matrix}q=\frac{i\left(25000-C\right)}{3Cu}\text{, }&u\neq 0\text{ and }C\neq 0\\q\in \mathrm{C}\text{, }&C=25000\text{ and }u=0\end{matrix}\right,$$

Chiziqli tenglamalarni yechish bo'yicha qadamlar

3i hosil qilish uchun 3 va i ni ko'paytirish.

$$C=25000+3iqCu$$

Tomonlarni almashtirib, barcha oʻzgaruvchi shartlar chap tomonga oʻtkazing.

$$25000+3iqCu=C$$

Ikkala tarafdan 25000 ni ayirish.

$$3iqCu=C-25000$$

Tenglama standart shaklda.

$$3iCuq=C-25000$$

Ikki tarafini 3iCu ga bo‘ling.

$$\frac{3iCuq}{3iCu}=\frac{C-25000}{3iCu}$$

3iCu ga bo'lish 3iCu ga ko'paytirishni bekor qiladi.

$$q=\frac{C-25000}{3iCu}$$

C-25000 ni 3iCu ga bo'lish.

$$q=-\frac{i\left(C-25000\right)}{3Cu}$$