Need the answer right now
circle c has radius 6, and a tangent segment drawn to circle c from point x has a length of 8. what is the distance cx?
select one:
a. 5.29
b. 7
c. 10
d. 14

The answer is $9.90 with rounding to the nearest tenth

So the first thing we do is to multiply the top equation by 3. the reason i want to do this is i notice there will be a 6y on both equations and can possibly add/subtract them. so we get 6y = -3x + 27. adding that and the second equation we get 6x = 27-15 which is 12. divide by 6 and we get 2. ∴ x = 2. substituting 2 into the first equation we get 2y = -2 + 9 which is 7. divide by 2 and we get 7/2. ∴ y = 7/2, x = 2.