Answer:
x = 72
Step-by-step explanation:
x+y = 180 since they make a straight line
x = 2n+12 and y = 3n+18
2n+12 + 3n+18 = 180
Combine like terms
5n+30 = 180
Subtract 30 from each side
5n+30-30 = 180-30
5n = 150
Divide by 5
5n/5 = 150/5
n = 30
We want to find angle x
x = 2n+12
= 2(30)+12
= 60+12
=72
