Answer
74 AND 106
Explanation
Supplementary angles are those angles that add up to 180.
So, if (2x+4) and (3x+1) are supplementary angles they add up to 180.
(2x+4) + (3x+1) = 180
2x+4+3x+1=180
5x = 180 -5
5x + 175
x = 35
(2x+4) = 2×35 +4
=70+4
= 74
(3x+1) = 3×35 + 1
= 105 +1
= 106
