Solve for substitution
y=-x-6
y=x+10

x=-4, y=-2

Step-by-step explanation:

y+x=-6 --------- 1

y-x=10 ---------- 2

1 - 2

y + x - (y - x) = -6 -10

y + x - y + x = -16

2x = -16

x = -4

sub x=-4 to 1

y+(-4)=-6

y-4=-6

y=-6+4

y=-2

rx and sx

step-by-step explanation: