Mathematics, 19.02.2021 18:00, umimgoingtofail

For what values of a and b will the following system of linear equations has infinitely many solutions ? 21 - 3y = 7 ; (a+b)x - (a +b -3)y = 4a+b

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For what values of a and b will the following system of linear equations has infinitely many solutio...