Question

which if the following is the x-corrdinate of the solution to the system shown below?

x+y=11
x-y=7

(A) x=9
(B) x=2
(C) x= 18
(D) x=14

Answer 1

the answer is A (x=9)

Answer 2

Answer:

x = 9

hope it helps

I'm soo sad :(