18n + 27 or 9(2n + 3)
3 + 3n = 9 + 2n + 4n n = -2
9 - 5n
6n -3=2n+9 6n-2n=9+3 4n=12 n=12/4 n=3
6+5n=2n-9Isolate the variable by subtracting 2n and 6 from both sides.5n-2n=-9-63n=-15n=-5
'n' can be any number, but when applied to (2n + 4), n = 2.5
3n + 9 = 3(n + 3)
5n + 1 = 10 + 2n5n - 2n + 1 - 1 = 10 - 1 + 2n - 2n3n = 93n/3 = 9/3n = 3
2n + 4m - 2n + m = 5m
2n plus 4 = 2n + 4
If you mean: (2n-14)(3n+9) = 0 then it is a quadratic equation whose solution is n = -3 or n = 7
9-2n = 7