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8 October, 12:14

One number is - 3 times the first number. The sum of the numbers is - 4. What is the second number?

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  1. 8 October, 14:45
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    Lets say that the first number is x and the second number is y.

    from the question we know that:

    y=-3x and x+y=-4

    from there, you need to replace the y in the second equation with - 3x since we know that is what y equals so we can have an equation with only one variable.

    x+-3x+-4

    Then you solve for x.

    -2x=-4

    x=2

    then you find y with the fact that y=-3x

    y=-6
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