-2.18
7n + 1 = 6n + 8 7n=6n+7 (minus 1 from each side) n=7 (7n-6n equals n, you are left with n=7)
(10, 2)
22n + 2.
6m + 5n - 4m + 7n = 2m + 12n
9 - 5n
10n + 3 = 7n + 53n = 2n = 2/3
10n+2
4n + 3y
7n(n−1)
7n - 2 + 3n + 4 = 7n + 3n - 2 + 4 = 10n + 2 which can be simplified to 2(5n +1)
8n + 7 - n - 98 = 7n - 91