Answer:
L=16.51
Explanation:
To solve and find the value of L, you have to isolate L.
To do this, you pass the (-7.4) that is negative number to the other side of the equation,
When you pass a negative number to the other side of the equation it passes as positive number.
![L=9.11+7.4\\L=16.51](https://img.qammunity.org/2019/formulas/mathematics/middle-school/io2xrsbq7kvtgas46j0h293mdhojnus2t6.png)