7y-2-(5y-55)+y-(4+3y)= eching

$$7 y - 2 - ( 5 y - 55 ) + y - ( 4 + 3 y ) =$$

Baholash

$$49$$

Yechim qadamlari

5y-55 teskarisini topish uchun har birining teskarisini toping.

$$7y-2-5y-\left(-55\right)+y-\left(4+3y\right)$$

-55 ning teskarisi 55 ga teng.

$$7y-2-5y+55+y-\left(4+3y\right)$$

2y ni olish uchun 7y va -5y ni birlashtirish.

$$2y-2+55+y-\left(4+3y\right)$$

53 olish uchun -2 va 55'ni qo'shing.

$$2y+53+y-\left(4+3y\right)$$

3y ni olish uchun 2y va y ni birlashtirish.

$$3y+53-\left(4+3y\right)$$

4+3y teskarisini topish uchun har birining teskarisini toping.

$$3y+53-4-3y$$

49 olish uchun 53 dan 4 ni ayirish.

$$3y+49-3y$$

0 ni olish uchun 3y va -3y ni birlashtirish.

$$49$$

Omil

$$7^{2}$$