2+u/2=7^-2 eching

$$2 + \frac { u } { 2 } = 7 ^ { - 2 }$$

u uchun yechish

$$u = -\frac{194}{49} = -3\frac{47}{49} \approx -3,959183673$$

Chiziqli tenglamalarni yechish bo'yicha qadamlar

Tenglamaning ikkala tarafini 2 ga ko'paytirish.

$$4+u=2\times 7^{-2}$$

-2 daraja ko‘rsatkichini 7 ga hisoblang va \frac{1}{49} ni qiymatni oling.

$$4+u=2\times \frac{1}{49}$$

\frac{2}{49} hosil qilish uchun 2 va \frac{1}{49} ni ko'paytirish.

$$4+u=\frac{2}{49}$$

Ikkala tarafdan 4 ni ayirish.

$$u=\frac{2}{49}-4$$

-\frac{194}{49} olish uchun \frac{2}{49} dan 4 ni ayirish.

$$u=-\frac{194}{49}$$