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anonymous

  • one year ago

Is the ordered pair (0,5) a solution of the system of linear equations: x + y = 5 -5x + 2y = 10 a. yes b. no Im really not sure on this

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  1. anonymous
    • one year ago
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    Do you know how to solve systems?

  2. anonymous
    • one year ago
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    I would be lying if i said i did lol my school doesn't explain anything :(

  3. anonymous
    • one year ago
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    First take the first equation, and solve it for y. y = 5-x Then we plug this in to the next equation and solve for the value of y. -5x + 2(5-x) = 10 -5x + 10 - 2x = 10 -7x + 10 = 10 -10 -10 -7x = 0 /-7 /-7 x = 0 Now we plug x = 0 back in to the first equation: 0+y = 5 y = 5 Ordered pair: (0,5) SO yes it is a solution. Does this make sense?

  4. anonymous
    • one year ago
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    Please let me know if it does not.

  5. anonymous
    • one year ago
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    OH thank you!!! that made perfect sense :)

  6. anonymous
    • one year ago
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    Awesome tag me for any more help.

  7. anonymous
    • one year ago
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    Okay thank you

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