1.

If2 x - 3y = 7 and (a + b )x - (a + b - 3) y = 4a + bhave an infinite number of solutions then

Answer»

` a= 5, B = 1 `
` a= - 5, b = 1 `
` a = 5, b = - 1`
`a = - 5, b = - 1 `

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