Question

find the value of the unknown letters in each of the figures given below:

Answer 1

2y+3y=180(liner pair)
5y=180
y=180/5
y=36
therefore,
2y=36*2
    =72
3y=36*3
    =108
.....
then the second part
x+15+2x+15+x+10=180(linear pair)
4x+40=180
4x=180-40
4x=140
x=140/4
x=35
therefore,
x+15=35+15=50
2x+15=70+15=85
x+10=35+10=45

hope it helps

Answer 2

X= 35° Y= 36 ° I hope it is correct..