Question

Answer above question it's very very important


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Class 9​

Answer 1

3x-y= -1

2x+y=3

________

5x= 2

x= 2/5

2x+y=3

2×2/5+y=3

4/5+y=3

y= 3+4/5

y=(15-4)/5

y= 11/5

option (d) [2/5,11/5]

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Answer 2

isha13518 has already answered this question by solving both the equations. This answer is a quicker way to arrive at the answer, given this is a multiple choice question.

Answer:

d)  $(\frac{2}{5} , \frac{11}{5} )$

Step-by-step explanation:

All the four answer choices has denominator for x and y as 5.

So we can rewrite the given equations as:

$2x + y - \frac{15}{5} = 0\\\\3x -y + \frac{5}{5} = 0$

Only answer d) satisfies both the above equations when we substitute values of x and y.