Question

graphically x+2y=5,y=-2x-1​

Answer 1

Step-by-step explanation:

X + 2y= 5 ,-2x-y=1

1×-1. 2x+y=-1

2×-2. -2x+y=-10

2y=-11

y=-11/2

x+2(-11/2)=5

x+(-11)=5

x=16