Question

(ii) हल करो : x + y = 7; 2x - 3y= 9.​

Answer 1

Answer:

3×eq(i)

3x+3y=21

2x-3y=9

Step-by-step explanation:

5x=30

x=6

put the value of x in eq (I)

6+y=7

so, y=7-6=1

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Answer 2

Answer:

x = 6, y = 1

Step-by-step explanation:

x + y = 14.......(1)

2x - 3y = 9.....(2)

dividing by 2 in equation (1)

2x + 2y = 14

2x - 3y = 9

_________

5y = 5

y = 1

putting y = 1 in equation (1)

x + y = 7

x + 1 = 7

x = 6

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