Answer:
x = 27
Step-by-step explanation:
Supplementary angles add up to 180 degrees
65 + 5x - 20 = 180
45 +5x = 180
5x = 135
the answer is simple y=3
1/2
a 90
b 90
a 8x+40
b 4y-36
c -6n-3
d 7x+7
e -10x+30
f 4/1x+2/1