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20 September, 12:29

Solve the system for each variable. y + g = 12 and 2y + 3g = 16

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  1. 20 September, 15:16
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    Y + g = 12,2y + 3g = 16

    y = 12-g

    Substitute y = 12-g in the equation 2y + 3g = 16.

    2 (12-g) + 3g = 16

    24-2g+3g=16

    24+g=16

    g=16-24

    g = - 8

    Substitute g = - 8 in the equation y = 12-g.

    y = 12 - (-8)

    =12+8

    y = 20
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