Answer:
One angle is 100°
The other angle is 80°
Explanation:
The two angles together are supplementary. Together, they make a straight line and the angle for this is 180
3y + 7 + 3y -13 = 180 Combine like terms
6y -6 = 180 Add 6 to both sides
6y = 186 Divide both sides by 6
y = 31 Now plug this in for the two angels to find their measurements
3y + 7
3(31) + 7
93 + 7 = 100
3y - 13
3(31) - 13
93 -13
80