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How do you solve $3 n - 21 = 2 n$ $3n - 21 = 2n$ ?

1 Answer

Dec 27, 2015

$n = 21$ $color(blue)(n=21$

Explanation:

$3 n - 21 = 2 n$ $3n-21=2n$

$3 n - 2 n = 21$ $3n-2n = 21$

$n = 21$ $color(blue)(n=21$

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