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DogLuverSarah2012 Group Title

Can someone please help me understand how to write equations in standard form using integers?

  • 2 years ago
  • 2 years ago

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  1. DogLuverSarah2012 Group Title
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    \[y=2x+5\]

    • 2 years ago
  2. joshi Group Title
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    so standard form is x+y = some number so here we have to get 5 on one side by itself

    • 2 years ago
  3. DogLuverSarah2012 Group Title
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    Ok so tahts the part that cnfuses me is getting the number 5 alone on 1 side. The quation is adding so that means you'd have to subtract 2x from each side???

    • 2 years ago
  4. mathstudent55 Group Title
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    yes

    • 2 years ago
  5. mathstudent55 Group Title
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    Standard form for a linear equation (the equation that graphs as a straight line) is ax + by = c, where a, b, and c are numbers. In this case, subtract 2x from both sides, and you'll get it.

    • 2 years ago
  6. DogLuverSarah2012 Group Title
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    Thats the part that really confuses me...I got 5=y-2x.

    • 2 years ago
  7. mathstudent55 Group Title
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    Start again: y = 2x + 5 The y is already on the left, and the 5 is already on the right. All you need to do, is get the 2x on the left side.

    • 2 years ago
  8. DogLuverSarah2012 Group Title
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    ok so then itd be 2x-y=5.

    • 2 years ago
  9. mathstudent55 Group Title
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    To do that, subtract 2x from both sides: y = 2x + 5 -2x -2x ----------------- -2x + y = 5 Answer is -2x + y = 5

    • 2 years ago
  10. DogLuverSarah2012 Group Title
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    Ok thank you very much!

    • 2 years ago
  11. joshi Group Title
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    that's actually the same thing you got the first time though

    • 2 years ago
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