Do 5*2/3 then you will have your answer. ITS ALL IN THE QUESTION
X = Harry's Age
Nick's age is 7x
In 6 years Harry is 7x+6, and Nick is 5(x+6)
7x+6=5x+30
2x+6=30
2x = 24
x = 12
Harry = 12 years old and in 6 years Harry will be 18.
< 1 is the angle has the same measurement as < 3 ( alternate interior angles )