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6x+5y=7x+3y+1=2(x+6y-1) Find the value of x …

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6x+5y=7x+3y+1=2(x+6y-1) Find the value of x and y.

Posted by Shruti Jha 6 years, 5 months ago

CBSE > Class 10 > Mathematics

2 answers

Ãkäsh Målhõträ 6 years, 5 months ago

x=17and y=10

2Thank You

Ãkäsh Målhõträ 6 years, 5 months ago

6x+5y=2(x+6y-1) 6x+5y=2x+12y-2 6x-2x+5y-12y=-2 4x-7y=-2 ------------------(1) Again,7x+3y+1=2(x+6y-2) 7x+3y+1=2x+12y-4 7x-2x+3y-12y=-4-1 5x-9y=-5 -------------------(2) Multiplying eqt.(1) by 5 and (2) by 4 20x-35y=-10 20x-36y=-20 ~~+~~~+~ y=10 Put y=10 in any eqt. 4x-7y=-2 4x-7×10=-2 4x=-2+70 x=68/4=17

2Thank You

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