Question

What is the solution to these system of equations x+y=-2 and y=x+4

Answer 1

x-y =2 …(1)

x+y = 4 …(2)

add (1) and (2), to get

2x = 6, or x = 3. From (1) y = 3–2 = 1.

So x = 3, y = 1.