(500*16+450*4)-a(500*16+450*4)=1960 eching

$$( 500 \times 16 + 450 \times 4 ) - a ( 500 \times 16 + 450 \times 4 ) = 1960$$

a uchun yechish

$$a=\frac{4}{5}=0,8$$

Chiziqli tenglamalarni yechish bo'yicha qadamlar

8000 hosil qilish uchun 500 va 16 ni ko'paytirish. 1800 hosil qilish uchun 450 va 4 ni ko'paytirish.

$$8000+1800-a\left(500\times 16+450\times 4\right)=1960$$

9800 olish uchun 8000 va 1800'ni qo'shing.

$$9800-a\left(500\times 16+450\times 4\right)=1960$$

8000 hosil qilish uchun 500 va 16 ni ko'paytirish. 1800 hosil qilish uchun 450 va 4 ni ko'paytirish.

$$9800-a\left(8000+1800\right)=1960$$

9800 olish uchun 8000 va 1800'ni qo'shing.

$$9800-a\times 9800=1960$$

-9800 hosil qilish uchun -1 va 9800 ni ko'paytirish.

$$9800-9800a=1960$$

Ikkala tarafdan 9800 ni ayirish.

$$-9800a=1960-9800$$

-7840 olish uchun 1960 dan 9800 ni ayirish.

$$-9800a=-7840$$

Ikki tarafini -9800 ga bo‘ling.

$$a=\frac{-7840}{-9800}$$

\frac{-7840}{-9800} ulushini -1960 ni chiqarib, bekor qilish hisobiga eng past shartlarga kamaytiring.

$$a=\frac{4}{5}$$