Question: Remaining How Did I Do? Uses: 2/3 Solve the system of equations by any method. 3x + 12y = 21 a - 4y - 7

Remaining "How Did I Do?" Uses: 2/3 Solve the system of

Remaining "How Did I Do?" Uses: 2/3 Solve the system of equations by any method. 3x + 12y = 21 a - 4y - 7 Enter the exact answer as an ordered pair, (x, y). If there is no solution, enter NS. If there is an infinite number of solutions, e

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