46-{38-(-2)+-9+(42-18+-15)-(-7)}= eching

$$46 - \{ 38 - ( - 2 ) + - 9 + ( 42 - 18 + - 15 ) - ( - 7 ) \} =$$

Baholash

$$-1$$

Yechim qadamlari

-2 ning teskarisi 2 ga teng.

$$46-\left(38+2-9+42-18-15-\left(-7\right)\right)$$

40 olish uchun 38 va 2'ni qo'shing.

$$46-\left(40-9+42-18-15-\left(-7\right)\right)$$

31 olish uchun 40 dan 9 ni ayirish.

$$46-\left(31+42-18-15-\left(-7\right)\right)$$

73 olish uchun 31 va 42'ni qo'shing.

$$46-\left(73-18-15-\left(-7\right)\right)$$

55 olish uchun 73 dan 18 ni ayirish.

$$46-\left(55-15-\left(-7\right)\right)$$

40 olish uchun 55 dan 15 ni ayirish.

$$46-\left(40-\left(-7\right)\right)$$

-7 ning teskarisi 7 ga teng.

$$46-\left(40+7\right)$$

47 olish uchun 40 va 7'ni qo'shing.

$$46-47$$

-1 olish uchun 46 dan 47 ni ayirish.

$$-1$$

Omil

$$-1$$