Answer :

15n - 2n = 6 - n
13n = 6 - n
14n = 6
    n = 6/14
    n = 3/7
Simplify 15n - 2n to 13n (13n = 6 - n)

add n to both sides (13n + n = 6)

simplify 13n + n to 14n (14n = 6)

divide both sides by 14 (n = 6/14)

simplify 6/14 to 3/7

Answer: n = 3/7.

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