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Today, 04:57

The sum of two numbers is 8, and their difference is 22

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  1. Today, 07:38
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    15, - 7 x=15 y=-7

    Step-by-step explanation:

    x+y=8, we'll come back to this

    x-y=22, move y to the other side, x=y+22

    now insert the value of x = (y+22) to the other equation like so, (y+22) + y=8, simplify

    2y+22=8 2y = (-14), y = (-7)

    Insert the value of y into the first equation again like so, x + (-7) = 8, simplify

    x=15

    15, - 7
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