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solve the pair of linear equation 3 X + Y is equal to minus 1 and minus 2 X + 3 Y is equal to 19 hence find the value of M if their point of intersection lies on the line Y is equal to MX + 3

Posted by Akshat Saxena 7 years, 6 months ago

CBSE > Class 10 > Mathematics

1 answers

Sonali Aggarwal 7 years, 6 months ago

3x + y = -1 *2

-2x + 3y = 19 *3

Using elimination method,

6x + 2y = -2

-6x + 9y = 57

11y=55

y=5

and x= -2

Now since the point of their intersection lies on y= Mx + 3

Substituting values of x and y

5= -2M + 3

M= -1

1Thank You

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CBSE > Class 10 > Mathematics