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10 October, 10:08

Solve the system algebraically. y = 3 - x 3x + 4y = 1 What is the value of x? - 11 17/2 11

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  1. 10 October, 10:16
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    Y = 3 - x (1)

    3x + 4y = 1 (2)

    Substitute (1) for y in (2)

    3x + 4 (3 - x) = 1

    Expand, simplify and then solve for x

    3x + 12 - 4x = 1

    3x - 4x = 1 - 12

    -x = - 11

    x = 11
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