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21 February, 06:33

Solve by elimination 2x+5y=17 6x-5y=19

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  1. 21 February, 06:54
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    The value of y is 1.6The value of x is 4.5

    By elimination:

    2x + 5y = 17

    6x - 5y = 19

    We can add the second equation to the first in order to isolate one variable.

    (2x + 5y) + (6x - 5y)

    8x = 17

    Because we added the left side, we have to add the right side here as well.

    17 + 19 = 36

    8x = 36

    Divide both sides by 8

    x = 4.5

    We can plug this value back into the original equation to find the value of y.

    2 (4.5) + 5y = 17

    9 + 5y = 17

    Subtract 9 from both sides.

    5y = 8

    Divide both sides by 5.

    y = 1.6
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