You can't. 17 + 2n = 21 + 2n gives: 2n = 4 + 2n which gives 0=4 which is not possible so the sum is not solveable.
Exactly that. 2n+2.
(2n + 7)(2n + 7)
2n/3 = 4 2n = 3*4 2n = 12 n = 6 :)
It can be simplified to: 9m-2n
2n + 4m - 2n + m = 5m
2n plus 4 = 2n + 4
4n
7+2n
You can't. 17 + 2n = 21 + 2n gives: 2n = 4 + 2n which gives 0=4 which is not possible so the sum is not solveable.
5n = 2n + 3n .
Exactly that. 2n+2.
(2n + 7)(2n + 7)
15m + (2n-6m) + 11m = = 15m + 11m + 2n - 6m = 26m - 6m + 2n = 20m + 2n = 2(10m + n)
2n/3 = 4 2n = 3*4 2n = 12 n = 6 :)
That factors to (2n + 1)(n + 2)
18n + 27 or 9(2n + 3)