Question

20-30+50•(50+70)+986-(350+153)​

Answer 1

Ответ:

6473.

Пошаговое объяснение:

20-30+50•(50+70)+986-(350+153)​ = 6473.

1. 50+70 = 120;

2. 350 + 153 = 503;

3. 50•120 = 6000;

4. 20 - 30 = - 10;

5. - 10 + 6000 = 5990;

7. 5990 + 986 = 6976;

8. 6976 - 503 = 6473.

Answer 2

To simplify this expression, we need to follow the order of operations, also known as PEMDAS (parentheses, exponents, multiplication/division, addition/subtraction):

20 - 30 + 50 * (50 + 70) + 986 - (350 + 153)

= 20 - 30 + 50 * 120 + 986 - 503 (calculating inside the parentheses)

= 20 - 30 + 6000 + 986 - 503 (multiplying 50 by 120)

= 6243 (adding and subtracting from left to right)

Therefore, the value of the expression is 6243.