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29 October, 23:19

The sum of a certain number and a second number is - 42. The first number minus the second number is 52. find the numbers

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  1. 29 October, 23:41
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    Let the first number be x and decide number be y

    therefore x+y = - 42

    also. x-y = 52 using the process of elimination

    we get: 2x = 10

    we divide both sides by 2, which gives us x=5

    then we substitute the value of x in the first equation

    that gives us. 5+y = - 42

    thus. y = - 47
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