Answer:
x=1
y=-4
Step-by-step explanation:
Since -x-3=y subsitue that in at the top equation
[tex] - x - 3 = - 7x + 3[/tex]
[tex] - x = - 7x + 6[/tex]
[tex]6x = 6[/tex]
[tex]x = 1[/tex]
Plug x=1 back into the equation to solve for y.
[tex]y = - 7(1) + 3[/tex]
[tex]y = - 4[/tex]
