Question

Solve the system of equations using the elimination method. Enter the answer as an ordered pair.
x+y=9
x-y=7

Answer 1

x+y=9 -(1)
x-y=7 -(2)

(1)+(2)
(x+y) + (x-y) = 9+7
2x = 16

Solve x.

Put x back to (1) and solve y. Can you do it?

Answer 2

So X=4 @Callisto

Answer 3

Not really..
2x = 16
Divide both sides by 2, what do you get?

Answer 4

How would i solve for y though? @Callisto

Answer 5

my bad x=8

Answer 6

So, put x=8 into (1)
8 + y = 9
Solve y. Can you do it?

Answer 7

y=1 @Callisto Thankyou so much

Answer 8

Welcome :)