Question

Реши по действия 18+12:4-(12+18:3):3=?(45:9+16):7+56:7+49:7=?помогите пожалуйста срочно нужно!!!

Answer 1

1) 18:3=6
2) 12+6=18
3) 12:4=3
4) 18:3=6
5) 18+3=21
6) 21-6=15

1) 45:9=5
2) 5+16=21
3) 21:7=3
4) 56:7=8
5) 49:7=7
6) 3+8=11
7) 11+7=18

Answer 2

Calculating the Expression

To solve the given expression, we'll follow the order of operations (PEMDAS/BODMAS) which stands for Parentheses/Brackets, Exponents/Orders, Multiplication and Division (from left to right), and Addition and Subtraction (from left to right).

The given expression is: 18 + 12:4 - (12 + 18:3):3

Let's solve it step by step.

Step 1: Calculate the values inside the parentheses: 12 + 18 = 30

Step 2: Calculate the division: 12:4 = 3 18:3 = 6

Step 3: Substitute the calculated values back into the expression: 18 + 3 - 30:3

Step 4: Continue solving the expression: 18 + 3 - 10

Step 5: Perform the remaining addition and subtraction: 18 + 3 - 10 = 21 - 10 = 11

So, the value of the given expression is 11.

Calculating the Second Expression

Now, let's solve the second expression: (45:9 + 16):7 + 56:7 + 49:7

Step 1: Calculate the divisions: 45:9 = 5 16:7 = 2 56:7 = 8 49:7 = 7

Step 2: Substitute the calculated values back into the expression: (5 + 2):7 + 8 + 7

Step 3: Perform the addition inside the parentheses: (5 + 2):7 + 8 + 7 = 7:7 + 8 + 7 = 1 + 8 + 7 = 16

So, the value of the second expression is 16.

Final Result

The final result of the given expressions is: 11 and 16