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16 September, 15:55

Solve the system of linear equations below. 4x - 3y = 17 5x + 4y = 60

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  1. 16 September, 16:16
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    4x-3y=17 ... (1)

    5x+4y=60 ... (2)

    Multiply equation (1) by 4 and equation (2) by 3:-

    16x - 12y = 68

    15x + 12y = 180

    Adding these 2 equations:_

    31x = 248

    x = 248/31 = 8

    Now substitute x = 8 in equation (1) : -

    4 (8) - 3y = 17

    32-3y = 17

    -3y = - 15

    y = - 15/-3 = 5

    So solution is x=8, y=5
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