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anonymous

  • one year ago

Medal Solve each system of equations by addition-subtraction, or by substitution. 4n = 27 -3m m=11-2n

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  1. DanJS
    • one year ago
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    they have one already solved for m for you, just put that value in for m in the other one

  2. DanJS
    • one year ago
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    4n=27-3*(11-2n) n = ... If n is that, you can figure m from either equation

  3. anonymous
    • one year ago
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    4n = 27 - 3 ( 9n)

  4. anonymous
    • one year ago
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    @DanJS am i right?

  5. DanJS
    • one year ago
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    no, not sure what you did distribute the 3 into the quantity, then do additions

  6. DanJS
    • one year ago
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    4n = 27 + (-3)*(11-2n) 4n = 27 - 33 + 6n

  7. anonymous
    • one year ago
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    n= -30

  8. anonymous
    • one year ago
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    m i right i solved it through

  9. DanJS
    • one year ago
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    4n-6n = -6 -2n = -6 n = 3

  10. anonymous
    • one year ago
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    i added 27 by 33 thats my mistake

  11. DanJS
    • one year ago
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    you would have to show your steps, not sure what you did

  12. DanJS
    • one year ago
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    ahh

  13. anonymous
    • one year ago
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    to find m i sub in 3

  14. DanJS
    • one year ago
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    yeah distribuiting the quantity gives a - 33

  15. DanJS
    • one year ago
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    yeah, you know one of the 2 variables, you can use any relationship between the two to figure the other one

  16. anonymous
    • one year ago
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    i got m = 5

  17. anonymous
    • one year ago
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    4 (3) = 27 = 3m 12 = 27 - 3m -15 = -3m m = 5

  18. DanJS
    • one year ago
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    yes, to check if you are correct, try the value in the other equation , should get the same answer

  19. anonymous
    • one year ago
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    thank you so much

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