Question

2) (у – 7х4) — (2,3 – 9х4);

Answer 1

Ответ:

ответ внизу↓

Объяснение:

=y-28x+33,7

Answer 2

To simplify the expression (у – 7х4) — (2,3 – 9х4), we need to apply the order of operations, which states that we should perform operations within parentheses first, then multiplication and division from left to right, and finally addition and subtraction from left to right.

Let's simplify the expression step by step:

1. Distribute the negative sign to both terms inside the second parentheses: (у – 7х4) - 2,3 + 9х4

2. Perform the multiplication within each term: (у – 28) - 2,3 + 36

3. Subtract 2,3 from (у – 28): у – 28 - 2,3 + 36

4. Combine like terms: у - 30,3 + 36

5. Simplify further: у + 5,7

Therefore, the simplified expression is у + 5,7.