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18 October, 09:32

Solve the following system by substitution method. 2x-7y=12

-x+3.5=-6

+1
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  1. 18 October, 10:24
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    -x+3.5=-6

    x = 3.5+6 = 9.5

    2x-7y = 12

    2 (9.5) - 7y = 12

    19 - 7y = 12

    7y = 19-12

    7y = 7

    y = 1
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