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7 March, 03:17

What is the solution of the following system 4x-y=15 3x+2y=-8

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  1. 7 March, 05:52
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    From the first equation we get

    y=4x-15

    put the value of y in the second equation

    3x+2 (4x-15) = - 8

    3x+8x-30 = - 8

    11x=22

    x=2

    now put x=2 in any one eqn, say in first

    4 (2) - y=15

    8-y=15

    -y=7

    y=-7

    hope you understand!
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