Question

write four solution for each of the following equations: (i) 2x+y=7

Answer 1

1. x = 0, y = 7
2. x = 1, y = 5
3. x = 2, y = 3
4. x = 3, y = 1

Answer 2

let x be=0
2×0+y=7
0+y=7
y=7-0
y=7

let x be=2
2×2+y=7
4+y=7
y=7-4
y=3

let x be=3
2×3+y=7
6+y=7
y=7-6
y=1

let x be=4
2×4+y=7
8+y=7
y=7-8
y=-1