Answer:
Two angles measure 123°.
The other two angles measure 57°.
Explanation:
I assume the quadrilateral is a parallelogram.
In a parallelogram, opposite angles are congruent.
Consecutive angles are supplementary.
Supplementary angles 2x - 5 and 180.
2x - 5 + 123 = 180
2x = 62
x = 31
Congruent angles 3y and 123
3y = 123
y = 41
3y = 3(41) = 123
2x - 5 = 2(31) - 5 = 57
Two angles measure 123°.
The other two angles measure 57°.