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anonymous

  • 5 years ago

what is the y-coordinate of the graphs of 2x minus 3y = -1 and 2x + y = 67

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  1. anonymous
    • 5 years ago
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    2x - 3y = -1 2x + y = 67 Subtract the two equations: -4y = -68 y = 17

  2. anonymous
    • 5 years ago
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    wait what do you mean subtract the two equations?

  3. anonymous
    • 5 years ago
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    (2x-3y)-(2x+y) = (1)-(67)

  4. anonymous
    • 5 years ago
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    how do you get -68?

  5. anonymous
    • 5 years ago
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    -1 - 67 = -68

  6. anonymous
    • 5 years ago
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    oh I get it now... thank you

  7. anonymous
    • 5 years ago
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    can you help me on another problem.... Simplify x negative cubed times y to the 4th power/x negative squared times y negative cubed?

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