17. Solve the pair of equations :
2/x +3/y=13
5/x-4/y=-2
Answers
Answered by
1
Answer:
कत्यिलिकितियलुकु
यिति़ुसकी
Answered by
3
Answer:
x=1/2,y=1/3
Step-by-step explanation:
2/x + 3/y=13..…......(1)
5/x -4/y=-2.............(2)
(1)×5 - (2)×2
10/x+15/y =65
10/x - 8/y = -4
(-)15/y - (-8/y)=65-(-4)
or, 23/y=69
or, y=23/69=1/3
then,put the value of y on equation number (1)
2/x + 3÷1/3=13
or,2/x+9=13
or,2/x=13-9
or, x=2/4
or, x=1/2. [ANS]
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