(8a+3b-c)+(5a-b+c)+(-a-b-c)+(7a-b+4c) eching

$$( 8 a + 3 b - c ) + ( 5 a - b + c ) + ( - a - b - c ) + ( 7 a - b + 4 c )$$

Baholash

$$19a+3c$$

Yechim qadamlari

13a ni olish uchun 8a va 5a ni birlashtirish.

$$13a+3b-c-b+c-a-b-c+7a-b+4c$$

2b ni olish uchun 3b va -b ni birlashtirish.

$$13a+2b-c+c-a-b-c+7a-b+4c$$

0 ni olish uchun -c va c ni birlashtirish.

$$13a+2b-a-b-c+7a-b+4c$$

b ni olish uchun 2b va -b ni birlashtirish.

$$13a+b-a-c+7a-b+4c$$

20a ni olish uchun 13a va 7a ni birlashtirish.

$$20a+b-a-c-b+4c$$

0 ni olish uchun b va -b ni birlashtirish.

$$20a-a-c+4c$$

3c ni olish uchun -c va 4c ni birlashtirish.

$$20a-a+3c$$

19a ni olish uchun 20a va -a ni birlashtirish.

$$19a+3c$$

a ga nisbatan hosilani topish

$$19$$