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18 July, 07:57

What is the solution to the system of equations 8x-10y=-23 and 9x+10y=-16

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  1. 18 July, 08:22
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    8x-10y=-23

    9x+10y=-16

    (8x+9x) + (10y-10y) = (-23 + (-16))

    17x+0y=-39

    x=-39/17

    8 (-39/17) - 10y=-23

    -312/17-10y=-23

    -10y=-23+312/17

    -10y=-79/17

    y=79/170
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