What is the value of g(h(7))

A. -1
B. 3
C. -2
D. -1.5

A= b/2 because u simplying both sides of equation

Think of it as five or above give it a shove. change the 5 or above to the right to a zero and add one to the number on the left.

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.