Question

Find the value of x.

Answer 1

6

Step-by-step explanation:

Knowing that the sum of angles on a straight is 180 degrees, let's go ahead and solve for x as shown below;

`\begin{gathered} (20x+11)+(9x-5)=180\ldots\ldots\ldots\text{.(sum of angles on a straight line)} \\ 20x+9x=180-11+5 \\ 29x=174 \\ x=(174)/(29) \\ x=6 \end{gathered}`