Question

What is the measure of A and what is the measure of B

Answer 1

5y - 3 = 3y + 27
2y = 30
y = 15

m<A= 5(15) - 3 = 75 - 3 = 72

m<B = [360 - 2(72)]/2
m<B = [360 - 144] / 2
m<B = 216 / 2
m<B = 108

Answer 2

(5y-3) = (3y+27)   -3y from both sides

2y-3 =  27    +3 to both sides

2y= 30   divide both sides by 2

y=15

check

5X15-3 = 3x15+27

72 = 72

correct that y=15 and that each angle is 72

in that shape correlating angles are the same so...

360-72-72= 216

216 divided by 2= 108 degrees

B is equal to 108 degrees

A is equal to 72 degrees