Question

Используйте распределительные. сочетательные законы и решите Примеры. ПОЖАЛУЙСТА СРОЧНО!!! И РАСПИШИТЕ ПОНЯТНО! УМОЛЯЮЮЮ 1)468-396:(42-42:7)[phone]:(98:14-5)

Answer 1

468-396:(42-42:7)+8=
42:7=6
42-6=36
396:36=11
468-11=457
457+8=465

Answer 2

Problem 1: 468-396:(42-42:7)+8

To solve this problem, we can follow the order of operations, which is commonly known as PEMDAS (Parentheses, Exponents, Multiplication and Division, and Addition and Subtraction).

Let's break down the problem step by step:

1. Simplify the expression inside the parentheses: 42-42:7 - Divide 42 by 7: 42/7 = 6 - Subtract 6 from 42: 42 - 6 = 36

Result: 42-42:7 = 36

2. Now, substitute the simplified expression back into the original problem: 468-396:36+8

3. Simplify the expression inside the parentheses: 396:36 - Divide 396 by 36: 396/36 = 11

Result: 396:36 = 11

4. Substitute the simplified expression back into the problem: 468-11+8

5. Perform the remaining operations from left to right: - Subtract 11 from 468: 468 - 11 = 457 - Add 8 to 457: 457 + 8 = 465

Final Result: 468-396:(42-42:7)+8 = 465

Problem 2: 4221-294:(98:14-5)

Let's solve the second problem using the same order of operations (PEMDAS):

1. Simplify the expression inside the parentheses: 98:14-5 - Divide 98 by 14: 98/14 = 7 - Subtract 5 from 7: 7 - 5 = 2

Result: 98:14-5 = 2

2. Substitute the simplified expression back into the original problem: 4221-294:2

3. Simplify the expression inside the parentheses: 294:2 - Divide 294 by 2: 294/2 = 147

Result: 294:2 = 147

4. Substitute the simplified expression back into the problem: 4221-147

5. Subtract 147 from 4221: 4221 - 147 = 4074

Final Result: 4221-294:(98:14-5) = 4074

I hope this explanation helps! Let me know if you have any further questions.