【Question 1】
Given $128 \div x+75 \div x+57 \div x=6.5$, then $x=$ $\qquad$.

 untranslated part: 
```
【第 1 题】
已知 $128 \div x+75 \div x+57 \div x=6.5$, 那么 $x=$ $\qquad$.
```

translated part:
```
【Question 1】
Given $128 \div x+75 \div x+57 \div x=6.5$, then $x=$ $\qquad$.
```
【Analysis and Solution】Solve the equation; Division property.
$$
\begin{aligned}
128 \div x+75 \div x+57 \div x & =6.5 \\
\frac{128}{x}+\frac{75}{x}+\frac{57}{x} & =6.5 \\
\frac{128+75+57}{x} & =6.5 \\
\frac{260}{x} & =6.5 \\
x & =260 \div 6.5 \\
x & =40
\end{aligned}
$$