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    Solving a system of equations

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    8x+3y= -4
    3x+4y=10

    © BrainMass Inc. brainmass.com December 24, 2021, 4:59 pm ad1c9bdddf
    https://brainmass.com/math/linear-algebra/solving-a-system-of-equations-20794

    SOLUTION This solution is FREE courtesy of BrainMass!

    8x + 3y = -4 ----(1)
    <br>
    <br>3x + 4y = 10 ----(2)
    <br>
    <br>Multiply (1) by 3 and (2) by 8 and then subtract one from the other to eliminate x.
    <br>
    <br>(1)*3 ===> 24x + 9 y = -12 ---(3)
    <br>(2)*8 ===> 24x + 32y = 80 ---(4)
    <br>
    <br>Now (4)-(3) == > 23 y = 92 which gives y = 92/23 = 4
    <br>
    <br>Substitute this value of y in (2)
    <br>
    <br>3x + 4*4 = 10
    <br>
    <br>3x = 10-16 = -6 which gives x as -2
    <br>
    <br>Solution x = -2 and y = 4
    <br>
    <br>

    This content was COPIED from BrainMass.com - View the original, and get the already-completed solution here!

    © BrainMass Inc. brainmass.com December 24, 2021, 4:59 pm ad1c9bdddf>
    https://brainmass.com/math/linear-algebra/solving-a-system-of-equations-20794

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