Question

8.
ਸਮੀਕਰਣ 2x+y = 7 ਦੇ ਚਾਰ ਹੱਲ ਲਿਖੋ।
Write four solutions of the equation 2x + y = 7​

Answer 1

Step-by-step explanation:

2x+y=7

x+y=7-2=5

x+y=5

Answer 2

Step-by-step explanation:

1st solution : 2x+y=7

let the value of x=2 and y=?

2x+y=7

2×2+y=7

4+y=7

y=7-4=3

y=3

Answer of 1st solution : (2,3)

2nd solution : 2x+y=7

let the value of x= -2 and y=?

2×-2+y=7

-4+y=7

+y=7+4

y=11

Answer of 2nd solution : (-2,11)

3rd solution : 2x+y=7

let the value of y=4 and x=?

2×x+4=7

2x+4=7

2x=7-4

2x=3

x=3/2

Answer of 3rd solution : (3/2,4)

4th solution : 2x+y=7

let the value of y= 1 and x= ?

2×x+1=7

2x+1=7

2x=7-1

2x=6

x=6/2

x=3

Answer of 4th solution : (3,1)

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