Question

Write four solution of 2x + y = 7
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Answer 1

Step-by-step explanation:

Solution :

Given equation is:

2x + y = 7

For x = - 1, we get,

- 2 + y = 7

=> y = 9

∴ (-1, 9) is a solution.

For x = 0, we get

=> 0 + y = 7

=> y = 7

∴ (0, 7) is a solution.

For x = 1, we get

=> 2 + y = 7

=> y = 5

∴ (1, 5) is a solution.

For x = 2, we get

=> 4 + y = 7

=> y = 3

∴ (2, 3) is a solution.

Hence :

We have four solution (−1,9),(0,7),(1,5)and(2,3)

Answer 2

Given equation is:

2x + y = 7

For x = - 1, we get

−2 + y = 7

⇒y = 7 + 2

⇒y = 9

∴ (-1, 9) is a solution.

For x = 0, we get

⇒0 + y=7

⇒y = 7 - 0

⇒y = 7

∴ (0, 7) is a solution.

For x = 1, we get

⇒2 + y = 7

⇒y = 7 - 2

⇒y = 5

∴ (1, 5) is a solution.

For x = 2, we get

⇒4 + y = 7

⇒y = 7 - 4

⇒y = 3

∴ (2, 3) is a solution.

Hence, we have four solution (−1,9),(0,7),(1,5)and(2,3) .