Question

find the value of y
but the ans should be 20°
so I will get it as brainiest ​

Answer 1

y+5+4y-3+78=180

5y+80=180

y=100/5

y=20

Step-by-step explanation:

the sum of the angles here would be 180. cuz a full rotation is 360 so a half rotation would be 180. hope it helps

Answer 2

(y+5) + (4y-3)+78° = 180°

5y+80°=180°

5y= 180°-80°

5y= 100°

y= 20°