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Practice Set 12.1Each equation is followed by the values of the variable. Decide whetherthese values are the solutions of that equation.(1) x - 4 = 3, x = -1, 7, - 7(2) 9m = 81, m = 3, 9, -3(3) 2a + 4 = 0, a = 2, -2, 1(4) 3 - y = 4,y = -1, 1, 2​

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