What is the answer to this equation, 8x-5y=12, x=5-y ?

Question

What is the answer to the following equation,?

8x-5y=12

  x=5-y

Answer 1

plug x = 5 - y in for x into the first equation

8(5 - y) - 5y = 12

then 40 - 8y - 5y = 12

40 - 13y = 12

-13y = -28

y = 28/13

then x = 5 - 28/13 so x = 37/13

answer (37/13, 28/13)