Question 7926
substitution method...


eqn1 can be rewritten as 2x = 9-y. Now put this into the second equation as:


9-y - 5y = 15 and now simplfy
9 - 6y = 15
-6y = 6
y = 6/-6

--> y = -1


sub this back into 2x = 9-y


2x = 9-(-1)
2x = 9+1
2x = 10
x = 10/2

--> x = 5


jon.