6n
6n+3=15 6n+3-3=15-3=12 6n = 12 n=12/6 = 2
6n - 4 - 3 = 3n + 10 + 4n -7 = 7n - 6n + 10 -17 = n
Move the 2n over the equals sign. Become 4n (as 6n-2n= 4n) and then if 4n=16 then n=4.
10n. Just count up how many ns there are.
6n = 12 n = 2
6n
7n + 1 = 6n + 8 7n=6n+7 (minus 1 from each side) n=7 (7n-6n equals n, you are left with n=7)
-5=6n+7 -5-7=6n+7-7 -12=6n -12/6=6n/6 -2=n
6n+3=15 6n+3-3=15-3=12 6n = 12 n=12/6 = 2
6n - 4 - 3 = 3n + 10 + 4n -7 = 7n - 6n + 10 -17 = n
Move the 2n over the equals sign. Become 4n (as 6n-2n= 4n) and then if 4n=16 then n=4.
10n. Just count up how many ns there are.
This question as written can be taken two ways: 9m + 6n - 3m + 7n = 6m + 13n, or (9m + 6n) - (3m + 7n) = 9m + 6n - 3m - 7n = 6m - n
5n + 3 = 14 - 6n <=> 5n +6n = 14 - 3 <=> 11n = 11 => n = 11/11 = 1
6n -3=2n+9 6n-2n=9+3 4n=12 n=12/4 n=3
M+6n