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12 November, 08:37

Is x = - 3 a solution to 5x + 7 = 4

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  1. 12 November, 11:32
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    So, 5 x (-3) + 7 = - 15 + 7 = - 8, but not 4;

    Then, - 3 is not a solution to 5x + 7 = 4;
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