n-1/10n+10-6/2 eching

$$\frac { n - 1 } { 10 n + 10 } - \frac { 6 } { 2 }$$

Baholash

$$-\frac{29n+31}{10\left(n+1\right)}$$

Qisqa yechim qadamlari

3 ni olish uchun 6 ni 2 ga bo‘ling.

$$\frac{n-1}{10n+10}-3$$

Faktor: 10n+10.

$$\frac{n-1}{10\left(n+1\right)}-3$$

Ifodalarni qo‘shish yoki ayirish uchun ularni yoyib, maxrajlarini bir xil qiling. 3 ni \frac{10\left(n+1\right)}{10\left(n+1\right)} marotabaga ko'paytirish.

$$\frac{n-1}{10\left(n+1\right)}-\frac{3\times 10\left(n+1\right)}{10\left(n+1\right)}$$

\frac{n-1}{10\left(n+1\right)} va \frac{3\times 10\left(n+1\right)}{10\left(n+1\right)} da bir xil maxraji bor, ularning suratini ayirish orqali ayiring.

$$\frac{n-1-3\times 10\left(n+1\right)}{10\left(n+1\right)}$$

n-1-3\times 10\left(n+1\right) ichidagi ko‘paytirishlarni bajaring.

$$\frac{n-1-30n-30}{10\left(n+1\right)}$$

n-1-30n-30 kabi iboralarga o‘xshab birlashtiring.

$$\frac{-29n-31}{10\left(n+1\right)}$$

10\left(n+1\right) ni kengaytirish.

$$\frac{-29n-31}{10n+10}$$

Kengaytirish

$$-\frac{29n+31}{10\left(n+1\right)}$$

Qisqa yechim qadamlari

3 ni olish uchun 6 ni 2 ga bo‘ling.

$$\frac{n-1}{10n+10}-3$$

Faktor: 10n+10.

$$\frac{n-1}{10\left(n+1\right)}-3$$

Ifodalarni qo‘shish yoki ayirish uchun ularni yoyib, maxrajlarini bir xil qiling. 3 ni \frac{10\left(n+1\right)}{10\left(n+1\right)} marotabaga ko'paytirish.

$$\frac{n-1}{10\left(n+1\right)}-\frac{3\times 10\left(n+1\right)}{10\left(n+1\right)}$$

\frac{n-1}{10\left(n+1\right)} va \frac{3\times 10\left(n+1\right)}{10\left(n+1\right)} da bir xil maxraji bor, ularning suratini ayirish orqali ayiring.

$$\frac{n-1-3\times 10\left(n+1\right)}{10\left(n+1\right)}$$

n-1-3\times 10\left(n+1\right) ichidagi ko‘paytirishlarni bajaring.

$$\frac{n-1-30n-30}{10\left(n+1\right)}$$

n-1-30n-30 kabi iboralarga o‘xshab birlashtiring.

$$\frac{-29n-31}{10\left(n+1\right)}$$

10\left(n+1\right) ni kengaytirish.

$$\frac{-29n-31}{10n+10}$$