Move the 1st equation to get y by itself so it’s now y=-4x so you can substitute that in for the second equation 2y+x=-7 becomes 2(-4x)+x=-7 -8x+x=-7 -7x=-7 x=1
then plug that back in to find y 4(1)+y=0 4+y=0 y=-4
now you have x and y so your coordinate (the answer) is (1, -4) hope this helps!
