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anonymous

  • 5 years ago

x-y=5 can anyone solve this? or explain how to solve this problem?

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  1. anonymous
    • 5 years ago
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    I believe you need to solve for y to then continue to solve for x

  2. anonymous
    • 5 years ago
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    no...thats not right...

  3. anonymous
    • 5 years ago
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    if you have an equation with 2 unknown variables, you need 2 different equations to solve it...

  4. anonymous
    • 5 years ago
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    the equation you gave is for a graph...there are a lot of possible questions that can come from graphs...such as what is the x or y intercept

  5. anonymous
    • 5 years ago
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    im only solving for y

  6. anonymous
    • 5 years ago
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    right, so to solve for y, that means you want to get y alone on one side of the equation

  7. anonymous
    • 5 years ago
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    I guess you could say that y=x-5, but past that you can't do anything without another equation.

  8. anonymous
    • 5 years ago
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    y=x-5...this means that the y intercept on a graph is -5 and the x intercept is 5...the slope is 1...etc

  9. anonymous
    • 5 years ago
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    hope that helps.

  10. anonymous
    • 5 years ago
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    right so the basic rule of algebra is, you can do the same operations to both sides o the equation and know that it still holds - this means you can add anything to both sides, subtract, divide, or multiple both sides by the same thing and it's still true

  11. anonymous
    • 5 years ago
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    so x-y = 5

  12. anonymous
    • 5 years ago
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    so get y alone, you could try adding "y" o both sides

  13. anonymous
    • 5 years ago
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    yes and subtracting 5 from both sides as well

  14. anonymous
    • 5 years ago
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    so 1. x - y = 5 2. x - y + y = 5 + y 3. x = 5 + y 4. and no subtract y from both sides 5. x - 5 = 5 + y -5 6. x - 5 = y 7. y = x -5

  15. anonymous
    • 5 years ago
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    ok I think I got it now...thanks so much

  16. anonymous
    • 5 years ago
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    no=now* ;)

  17. anonymous
    • 5 years ago
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    and your subtracting 5..not y :p

  18. anonymous
    • 5 years ago
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    lol yep!

  19. anonymous
    • 5 years ago
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    ack!

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