For what value of a and b does the following has infinitly many soln 2x+3y=7;( a_b) x + (a+b)y=(3a+b-2)
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2x+3y=7
subtract 7 both side we get
2x+3y-7=0
(a-b) x+(a+b)y=3a+b-2
subtract 3a+b-2 both side we get
(a-b) x+(a+b)y-(3a+b-2)=0
compare with
subtract 7 both side we get
2x+3y-7=0
(a-b) x+(a+b)y=3a+b-2
subtract 3a+b-2 both side we get
(a-b) x+(a+b)y-(3a+b-2)=0
compare with
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