Question

write two solution of the equation 2x+y=7​

Answer 1

Step-by-step explanation:

take x = 0

2x+y=7

2×0+y=7

0+y=7

y=7-0

y=7

(0,7) is a solution.

take y = 3

2x+y=7

2x+3=7

2x=7-3

2x=4

x=4/2 = 2

(2,3) is a solution.

The two solutions are (0,7) , (2,3)

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Answer 2

Answer:

(−1,9),(0,7),(1,5)and(2,3)

Step-by-step explanation:

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)