Question

Solve the system by substitution.
3x-6=y
-6x+y=-9

Answer 1

Explanation:

y=3x-6

-6x+(3x-6)=-9

-3x-6=-9

-3x=-3

x=1,

Plug the x into other equations and it equals y

y=-3

(1,-3)

Answer 2

The solution is (1,-3)