Question

Solve using elimination x+2y=4 -x-y=2

Answer 1

Answer: y = 6 x = -8

Explanation:

X+2Y=4

-X-Y=2

(Combine like terms)

Y= 6

(Plug in 6 for y)

X+2(6)=4

X+12=4

X= -8

Answer 2

x=-8 y=6

Explanation:

Add the two equations together. This cancels the x and gets us y=6

Then substitute y in more the first equation which gets us -8