Find value of a and b, 2x - 3y = 7, (a + b)x - (a + b - 3)y = 4a + b

2x - 3y = 7, (a + b)x - (a + b - 3)y = 4a + b
2x-3y=7 (a+b)x-(a+b-3)y=4a+b
If 2x - 3y = 7 and (a + b) x - (a + b - 3) y = 4a + b have infinite solutions then (a,b)
find value of a and b for which the following system of linear equations has infinite number of solutions: 2x-3y =7 (a+b) x- (a+b-3) y= 4a+b.
2x - 3y = 7, ( a + b )x - ( a + b - 3 )y = 4a + b
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