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katlin95

  • 4 years ago

when solving the system x+2y=9 and x-y=6, which expression could be substituted for x in the second equation? a.9=x b.y-9/2 c.9-2y d. 1/2y+9

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  1. y2o2
    • 4 years ago
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    c.9-2y

  2. katlin95
    • 4 years ago
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    wouldnt it be b?

  3. y2o2
    • 4 years ago
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    You want to substitute for x not y

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