Answer:
[tex]x=-1[/tex]
[tex]y=-2[/tex]
Step-by-step explanation:
We are given system of equations as
X plus Y equals negative 3
so,
[tex]x+y=-3[/tex]
X minus Y equals one
so,
[tex]x-y=1[/tex]
so, system of equations are
[tex]x+y=-3[/tex]
[tex]x-y=1[/tex]
now, we can solve it
we can add both equations
[tex]x+y+x-y=-3+1[/tex]
[tex]2x=-2[/tex]
now, we can solve for x
[tex]x=-1[/tex]
now, we can find y
[tex]-1+y=-3[/tex]
[tex]y=-2[/tex]
so, solution is
[tex]x=-1[/tex]
[tex]y=-2[/tex]
now, we can draw graph
[tex]x+y=-3[/tex]
[tex]x-y=1[/tex]
and then we can find intersection point
that is (-1,-2)
so, x=-1 and y=-2
which is same
so, Zach is right about solution
