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11x + 15y +23 = 0 7x + 2y - 20 = 0

Answer» 11x+15y+23=011x+15y= -23. (equ.1st)7x-2y-20=07x-2y=20. (equ.2nd)11x+15y=-237x-2y = 20multiply by (2) in equ. 1st &( 15) in equ. 2nd we get.22x+30y= -46. ( equ. 3rd)105x-30y= 300. (equ. 4th)_____________127x=254X=254/127X = 2.put the value of X in equ. 2nd7x-2y=207(2)-2y =20. (X=2)14-2y =20-2y=20-14-2y= 6y= 6/-2y=-3.Your answer => X = 2 , Y= -3.


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