Question

А) 5*(-6)-18; б) 20+(-7)*3; в) -12-4*(-1)Плиз​

Answer 1

Ответ:

а) -30-18=-48

б) 20-21= -1

в) -12+4= -8

Answer 2

Ответ:1. -48

2. -1

3.-8

Пошаговое объяснение:

Answer 3

А) To evaluate the expression 5 * (-6) - 18, we follow the order of operations, which is known as PEMDAS (Parentheses, Exponents, Multiplication and Division from left to right, and Addition and Subtraction from left to right):

First, we calculate the multiplication: 5 * (-6) = -30.

Then, we subtract 18 from the result: -30 - 18 = -48.

Therefore, the value of the expression 5 * (-6) - 18 is -48.

Б) To evaluate the expression 20 + (-7) * 3:

First, we calculate the multiplication: (-7) * 3 = -21.

Then, we add 20 to the result: 20 + (-21) = -1.

Therefore, the value of the expression 20 + (-7) * 3 is -1.

В) To evaluate the expression -12 - 4 * (-1):

First, we calculate the multiplication: -4 * (-1) = 4.

Then, we subtract 4 from -12: -12 - 4 = -16.

Therefore, the value of the expression -12 - 4 * (-1) is -16.