Question 791320
solve the first equation for x to get


x+6y=2


x=2-6y


then plug this into the second equation


5x+4y=36


5(2 - 6y)+4y=36


10 - 30y+4y=36


10-28y=36


-26y=36-10


-26y=26


y = 26/(-26)


y = -1


And then use this to find x


x=2-6y


x=2-6(-1)


x=2+6


x = 8


So that shows you why the answer is (8,-1)