3n
and n = 4?
3n ( the four replaces the n
3(4)
= 12
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-3n+5n+4 = -4 2n = -4-4 2n = -8 n = -4
-3n + 4 = 2Subtract 4 from each side ==> -3n = -2Divide each side by -3 ==> n = 2/3
4n - 7n = 21(4-7) n =21-3n = 21divide both sides by -3n = -7
3n-5=13 +5 +5 3n=18 /3 /3 n=6
The question seems ambigous, but I will consider n 2n to be solving for n:2n - 3n = n/3 + 14-n = n/3 + 14-3n = n + 42-4n = 42Thus, the solution is n = -42/4 = -21/2 = -10.5.