6m + 7 - 2m + 1 = 4m + 8 If you meant: (6m + 7) - (2m + 1) = 4m + 6
74
12m2
8m + (4n - 6m) + 9n =8m + 4n - 6m + 9n =(8m - 6m) + (4n + 9n) =2m + 13n
6m + 5n - 4m + 7n = 2m + 12n
3m(2m + 5)
2m + 13n
3*(2m + 1) is equivalent.
6m x 2m, on average.
4m - 8 = 6m =>4m - 6m = 8 => -2m = 8 => m = -(8/2) => m = -4
6m2 - 3mp =m (6m - 3p) =3m (2m - p)
(2m + 1) and (6m - 1)