I'm taking a test help plz and thank you!!

the sum of all the angles in a triangle are equal to 180

so you can add   the 3 given angles together to equal 180:

5y + 2y + 2y = 180

or since all three angles have the same letter, combine the 3 angles to equal 180:

9y = 180

answer: 43/157

this is the answer and if you try to prove me wrong your a meanie