Answer:
x=61°
Explanation:
We can see that angle 2x-6 has a corresponding angle above it, which is congruent. That angle is supplementary with angle x+3, meaning that their sum is 180°. We can tell because they form a straight line/straight angle.
So,
(2x-6)+(x+3)=180
2x-6+x+3=180
3x-3=180
3x=183
x=61