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6 April, 02:02

If x + 5y = - 11 and 2x - 3y = 17, what is the value of x + y?

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  1. 6 April, 02:20
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    X+5y=-11 (1)

    2x-3y=17 (2)

    2 (1) - (2)

    2x+10y-2x+3y=-22-17

    13y=-39

    y=-3

    Sub y=-3 in (1)

    x+5 (-3) = - 11

    x=4

    So x+y = - 3+4 = 1
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