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anonymous

  • one year ago

What is the value of the y variable in the solution to the following system of equations? 3x + y = 11 -3x + 2y = 1 a. 2 b. 4 c. y can be any number as there are infinitely many solutions to the system. d. There is no y value as there is no solution to the system.

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  1. Vocaloid
    • one year ago
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    add the two equations together

  2. anonymous
    • one year ago
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    didn't we do this one already?

  3. anonymous
    • one year ago
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    No

  4. anonymous
    • one year ago
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    okay well chose one of the equations and set it equal to x

  5. anonymous
    • one year ago
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    3x+11= y?

  6. anonymous
    • one year ago
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    yea sure either one so on that one just subtract 11 and divide by 3

  7. anonymous
    • one year ago
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    then you'll get (y-11)/3 = x

  8. anonymous
    • one year ago
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    and now plug the (y-11)/3 into the other equation as if it was x

  9. anonymous
    • one year ago
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    So (-3x +y -11)/3 + 2y=1 ?

  10. anonymous
    • one year ago
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    @Vocaloid

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