## Finding the Difference: (4−5y)−2(3.5y−8)

This problem involves simplifying an expression by combining like terms. Let's break it down step-by-step:

### 1. Distribute the -2

Start by distributing the -2 to the terms inside the parentheses:

```
(4 - 5y) - 2(3.5y - 8) = 4 - 5y - 7y + 16
```

### 2. Combine Like Terms

Identify and group the terms with 'y' and the constant terms:

```
(4 + 16) + (-5y - 7y)
```

### 3. Simplify

Combine the coefficients:

```
20 - 12y
```

### Final Answer

The difference of (4−5y)−2(3.5y−8) is **20 - 12y**.