pre-algebra

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Please check

-42=4n+17n
N=3.09

13+10c-4=-29
C=-3.8

  • pre-algebra -

    -42=4n+17n
    -42 = 21n
    -2 = n

    13+10c-4=-29
    9 + 10c = -29

    10c = 20
    c = ?

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