Question

(ii) Solve : x + y = 7, 2x – 3y = 9.
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Answer 1

Step-by-step explanation:

x+y=7........1

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

Multiply 1 by 3

3x+3y=21

By adding ,we get

5x=30

x=6

putx=6 in 1

6+y=7

y=1

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Answer 2

Answer:

x+y=7

x=7-y

2x-3y=9

put the value of y

2(7-y)-3y=9

14-2y-3y=9

-5y=-5

y=1

x=7-y

x=7-1=6