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desperado

  • one year ago

SWEET MOTHER OF JESUS PLEASE HELP ME.

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  1. desperado
    • one year ago
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    What is the value of the x variable in the solution to the following system of equations? 3x + 2y = 8 2x + 3y = 2 4 –2 x can be any number as there are infinitely many solutions to this system. There is no x value as there is no solution to this system.

  2. Callisto
    • one year ago
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    Multiply the first equation by 3, what do you get?

  3. desperado
    • one year ago
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    6?

  4. Callisto
    • one year ago
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    No? Multiply both sides of the first equation by 3: 3 (3x + 2y) = 3 (8) ^Simplify this

  5. desperado
    • one year ago
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    ohhh right

  6. desperado
    • one year ago
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    hmmm....4?

  7. Callisto
    • one year ago
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    How do you get 4 from doing the multiplication?

  8. desperado
    • one year ago
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    i was guessing the answer

  9. Callisto
    • one year ago
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    Perhaps we can solve it together, rather than just guessing it?

  10. desperado
    • one year ago
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    okay we can try but i dont get this at all

  11. Callisto
    • one year ago
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    Let see how it goes :) First, multiply both sides of the first equation by 3, we get 3 (3x + 2y) = 3 (8) 9x + 6y = 24 Do you get this part so far?

  12. desperado
    • one year ago
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    yes

  13. Callisto
    • one year ago
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    Just call that equation (9x + 6y = 24) as (a) Now, we multiply the second equation 2x + 3y = 2 by 2, what do you get?

  14. desperado
    • one year ago
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    wait what's y?

  15. Callisto
    • one year ago
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    We will calculate it if you want. But in this case, we are going to solve the system of equations by elimination. And the variable we are going to eliminate is y.

  16. desperado
    • one year ago
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    i think i need a bit more of a push

  17. Callisto
    • one year ago
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    Hmm.. What do you mean?

  18. desperado
    • one year ago
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    towards getting the answer, i dont quite understand as well as i would like to

  19. Callisto
    • one year ago
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    Actually, we'll get the answer quite soon... A few more steps to go :| What do you get when you multiply the second equation 2x + 3y = 2 by 2?

  20. desperado
    • one year ago
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    10? :/

  21. Callisto
    • one year ago
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    Still guessing the answer?

  22. desperado
    • one year ago
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    no im just not sure

  23. Callisto
    • one year ago
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    10 for the answer or is that what you get when you do the multiplication?

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spraguer (Moderator)
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