If 2x-3y=7 and (a+b)x-(a+b-3)y=4a+b represent parallel lines then a an – InterviewSolution

1.	If 2x-3y=7 and (a+b)x-(a+b-3)y=4a+b represent parallel lines then a and b satisfy the equation:
Answer» 2x - 3Y = 7 and (a + b)x - (a + b - 3)y = 4a + b represent coincident lines then,2a+b=3a+b−3=74a+b2a+b=74a+b7(a+b)=2(4a+b)7a+7b=8a+2ba−5b=0Answer = a - 5b = 0

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