Question

(7 × 6) ÷ 2 [{45 + 3(7 x 2-15 + 6)} +4​

Answer 1

Answer:

= 1344

Explanation:

First, let's simplify the expression inside the innermost parentheses:
7 × 2 = 14
14 - 15 = -1
-1 + 6 = 5
So we can rewrite the expression as:
(7 × 6) ÷ 2 [{45 + 3(5)} + 4]
Next, we can simplify the expression inside the square brackets:
3(5) = 15
45 + 15 = 60
So the expression becomes:
(7 × 6) ÷ 2 [60 + 4]
Next, we can simplify the expression inside the square brackets:
60 + 4 = 64
So the expression becomes:
(7 × 6) ÷ 2 × 64
Next, we can simplify the expression inside the first set of parentheses:
7 × 6 = 42
So the expression becomes:
42 ÷ 2 × 64
Next, we can simplify the expression inside the second set of parentheses:
42 ÷ 2 = 21
So the expression becomes:
21 × 64
Finally, we can calculate the answer:
21 × 64 = 1344

Therefore, the answer is 1344.

Answer 2

Explanation:

you remember the priorities of mathematical operations :

1. brackets

2. exponents

3. multiplications and divisions

4. additions and subtractions

it is irrelevant how close or how far apart the operands are written.

I think, missing operators are multiplications.

so, by writing really everything

(7 × 6) ÷ 2 × [{45 + 3 × (7 × 2 - 15 + 6)} + 4]

we get in a first step :

(42) ÷ 2 × [{45 + 3 × (14 - 15 + 6)} + 4]

second step

21 × [{45 + 3 × (5)} + 4]

third step

21 × [{45 + 15} + 4]

fourth step

21 × [60 + 4]

fifth step

21 × 64

sixth step

1,344