2pir=120cm eching

$$2 \pi r = 120 cm$$

c uchun yechish

$$\left\{\begin{matrix}c=\frac{\pi r}{60m}\text{, }&m\neq 0\\c\in \mathrm{R}\text{, }&r=0\text{ and }m=0\end{matrix}\right,$$

Chiziqli tenglamalarni yechish bo'yicha qadamlar

Tomonlarni almashtirib, barcha oʻzgaruvchi shartlar chap tomonga oʻtkazing.

$$120cm=2\pi r$$

Tenglama standart shaklda.

$$120mc=2\pi r$$

Ikki tarafini 120m ga bo‘ling.

$$\frac{120mc}{120m}=\frac{2\pi r}{120m}$$

120m ga bo'lish 120m ga ko'paytirishni bekor qiladi.

$$c=\frac{2\pi r}{120m}$$

2\pi r ni 120m ga bo'lish.

$$c=\frac{\pi r}{60m}$$

m uchun yechish

$$\left\{\begin{matrix}m=\frac{\pi r}{60c}\text{, }&c\neq 0\\m\in \mathrm{R}\text{, }&r=0\text{ and }c=0\end{matrix}\right,$$

Chiziqli tenglamalarni yechish bo'yicha qadamlar

Tomonlarni almashtirib, barcha oʻzgaruvchi shartlar chap tomonga oʻtkazing.

$$120cm=2\pi r$$

Ikki tarafini 120c ga bo‘ling.

$$\frac{120cm}{120c}=\frac{2\pi r}{120c}$$

120c ga bo'lish 120c ga ko'paytirishni bekor qiladi.

$$m=\frac{2\pi r}{120c}$$

2\pi r ni 120c ga bo'lish.

$$m=\frac{\pi r}{60c}$$