#1**+2 **

Note the triangle is isosceles.

Therefore angle ABC and angle ACB are equal, meaning angle ACB is also y degrees.

Since the sum of the angles in a triangle is 180, we can find that 2y + 24 = 180:

2y + 24 = 180

2y = 156

y=78

Thus the value of y is **78 degrees**.

ArithmeticBrains1234 Mar 23, 2021