Question

Find four solution of 2x + y =7​

Answer 1

(2,3)

2(2)+(3) = 7

4+3=7

7=7

(1,5)

2(1)+5=7

2+5=7

7=7

(3,1)

2(3)+1=7

6+1=7

7=7

(4,-1)

2(4)+(-1)=7

8-1=7

7=7

The four solutions are

(2,3)

(1,5)

(3,1)

(4,-1)

Answer 2

Given line,

$2x + y = 7$

To find,

$four \: values \: of \: x \: and \: y$

Answer,

Solution:1

$let \\ x = 1 \\ therefore \\ 2 + y = 7 \\ y = 5 \\ (x,y) \: is \: (1,5)$

Solution:2

$let \\ x = 2 \\ therefore \\ 2 \times 2 + y = 7 \\ y = 3 \\ (x,y) \: is \: (2,3)$

Solution:3

$let \\ x = 3 \\ therefore \\ 2 \times 3 + y = 7 \\ y = 1 \\ (x,y) \: is \: (3,1)$

Solution:4

$let \\ x = 4 \\ therefore \\ 4 \times 2 + y = 7 \\ y = - 1 \\ (x,y) \: is \: (4, - 1)$

Final solution,

$four \: values \: of \: x \: and \: y \: in \: given \\ eq. \: 2x + y = 0 \\ are \\ 1. \: \: \: (x,y) = (1,5) \\ 2. \: \: \: (x,y) = (2,3) \\ 3. \: \: \: (x,y) = (3,1) \\ 4. \: \: \: (x,y) = (4, - 1)$

hope it helps to you☺️