?m/s=72km/h eching

$$? m / s = 72 km / h$$

h uchun yechish

$$\left\{\begin{matrix}h=72ks\text{, }&k\neq 0\text{ and }s\neq 0\\h\neq 0\text{, }&m=0\text{ and }s\neq 0\end{matrix}\right,$$

Chiziqli tenglamalarni yechish bo'yicha qadamlar

h qiymati 0 teng bo‘lmaydi, chunki nolga bo‘lish mumkin emas. Tenglamaning ikkala tarafini hs ga, s,h ning eng kichik karralisiga ko‘paytiring.

$$hm=s\times 72km$$

Shartlarni qayta saralash.

$$hm=72kms$$

Tenglama standart shaklda.

$$mh=72kms$$

Ikki tarafini m ga bo‘ling.

$$\frac{mh}{m}=\frac{72kms}{m}$$

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

$$h=\frac{72kms}{m}$$

72kms ni m ga bo'lish.

$$h=72ks$$

h qiymati 0 teng bo‘lmaydi.

$$h=72ks\text{, }h\neq 0$$

k uchun yechish

$$\left\{\begin{matrix}k=\frac{h}{72s}\text{, }&s\neq 0\text{ and }h\neq 0\\k\in \mathrm{R}\text{, }&m=0\text{ and }s\neq 0\text{ and }h\neq 0\end{matrix}\right,$$

Chiziqli tenglamalarni yechish bo'yicha qadamlar

Tenglamaning ikkala tarafini hs ga, s,h ning eng kichik karralisiga ko‘paytiring.

$$hm=s\times 72km$$

Tomonlarni almashtirib, barcha oʻzgaruvchi shartlar chap tomonga oʻtkazing.

$$s\times 72km=hm$$

Tenglama standart shaklda.

$$72msk=hm$$

Ikki tarafini 72sm ga bo‘ling.

$$\frac{72msk}{72ms}=\frac{hm}{72ms}$$

72sm ga bo'lish 72sm ga ko'paytirishni bekor qiladi.

$$k=\frac{hm}{72ms}$$

hm ni 72sm ga bo'lish.

$$k=\frac{h}{72s}$$