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14 October, 19:51

The sum of two numbers is 90. the larger number is 14 more than 3 times the smaller number.

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  1. 14 October, 22:18
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    The numbers are 19 and 71.

    Step-by-step explanation:

    Let x and y represent the two numbers. Then x + y = 90.

    Also, if we assume that the larger number is y, then y = 3x + 14.

    We must solve this system of linear equations. Since we already have the result of solution for y (y = 3x + 14), let's use the substitution method to find the solution:

    x + y = 90 becomes x + 3x + 14 = 90, or:

    4x = 76. Thus, x = 76/4, or 19. If x = 19, then y = 3 (19) + 14, or y = 71.

    The numbers are 19 and 71.

    Note that these add up to 90, as they must, and that 71 is 14 more than 3 times 19.
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