Question

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

X+y= 7 ------(1)

2x - 3y=9 -----(२)

multiplying equation number 1 by 3

3x + 3y=21 ------(3)

adding equation number 2 and 3

5x=30

x=6

put x= 6 in equation number 1

6+y=7

y=7-6

y=1

Answer 2

Answer:

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