Question

x+2y=8 & (-1-2) is the solution

Answer 1

Here is your answer dear..☺☺

case 1

x+2y=8
x=8-2y
let y be 0
x=8-2*0
x=8
let y be 1
x=8-2*1
x=8-2
x=6
let y be 2
x=8-2*2
x=8-4
x=4
x=8,6,4
y=0,1,2

case 2

y-x=1
-x=(1-y)
x=-(1-y)
x=-1+y
let y be 1
x=-1+1
x=0
let y be 2
x=-1+2
x=1
let y be 3
x=-1+3
x=2

x=0,1,2
y=1,2,3
now you can solve it on graph
i think it will help you!!!