Question

9×(-5)-(-7)4-(-3)×(-7)=​

Answer 1

Пошаговое решение:

1) Сначала выполняются умножения:

• 9×(-5)= -45

• (-3)×(-7)= 21

• (-7)×4= -28

Выходит: -45-21-(-28)

2) Дальше нужно просто решать:

• -45-21= -66

• Минус на минус даёт плюс, значит:

-66-(-28)= -38

Ответ: -38

Answer 2

Let's solve this equation step by step:

1. Start with the multiplication and division operations within parentheses:

   9 × (-5) = -45 -7 × 4 = -28 -3 × (-7) = 21

2. Now, substitute these results back into the original expression:

   -45 - (-28) - 21

3. Simplify further:

   -45 + 28 - 21

4. Finally, perform the addition and subtraction:

   -45 + 28 - 21 = -45 - 21 + 28 = -66 + 28 = -38

So, the value of the expression is -38.