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2x-3/y=9 3x+7/y=2

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2x-3/y=9 3x+7/y=2

Posted by Aleena Gimmi 7 years, 6 months ago

CBSE > Class 10 > Mathematics

1 answers

Jeenay Patel 7 years, 6 months ago

Let 1/y be a (2x-3a=9 )3 (3x+7a=2. )2 By elimination method 6x-9a=27. 6x+14a=4 - - - __________ 0x-23a=23 -23a=23 a=23/-23 a=-1 2x-3(-1)=9 2x+3=9 2x=9-3 x=6/2 x=3 1/y=a 1/y=-1 y=-1 (x,y)=(3,-1)

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CBSE > Class 10 > Mathematics