ANSWER :
x = 50
EXPLANATION :
Supplementary angles have a sum of 180 degrees.
From the problem, two supplementary angles are (x - 35) and (65 + 2x)
That will be :
[tex]\begin{gathered} (x-35)+(65+2x)=180 \\ \text{ Solve for x :} \\ 3x+30=180 \\ 3x=180-30 \\ 3x=150 \\ x=\frac{150}{3}=50 \end{gathered}[/tex]