Question

Which ordered pair is the solution to the system of equations?

2x+y=-8
x-y=-4


A.
(−3, −2)

B.
(−1, 3)

C.
(1, 5)

D.
(−4, 0)

Answer 1

one approach since you have choices plug and see what is true.
better approach
use substitution for this one equation 1 write y = expression 1 equation 2 write y = expression 2 y always = y so let expression 1 for y = expression 2 for y and solve for x. Now that you have x put the value in the expression for y and compute y

Answer 2

Add the two equations you get
3 x =-12 so x=-4

Answer 3

note that there are 4 different ways to solve simultaneous equations

you could also do the graph and read the point of intersection

Answer 4

Now, your choice is trivial

Answer 5

So it'd be D?

Answer 6

Yes