The Solution.
By sum of angles in a straight line, we get
[tex]2x+3+x-6=180[/tex][tex]\begin{gathered} 2x+x-6+3=180 \\ 3x-3=180 \\ 3x=180+3 \\ 3x=183 \\ \text{Dividing both sides by 3, we get} \\ x=\frac{183}{3}=61 \end{gathered}[/tex]The correct answer is x = 61
