4n = output
input = 10
output = ?
40
Input Output
1 4
2 8
3 12
4n
8 - 2 = 4 + 5
8 - 2 + 3 = 4 + 5
OR
8 - 2 = 4 + 5 - 3
n - 2 = 4
6
Solve for n
20 - 3n = 2
n = 6
2n + 3 = output
input = 4
output = ?
11
Input Output
1 2
2 5
3 8
3n - 1
10 + 3 = 17 - 2
10 + 3 + 2 = 17 - 2
OR
10 + 3 = 17 - 2 - 2
n + 4 =8
4
5n - 2 = output
input = 4
output = ?
18
Input Output
1 2
2 8
3 14
6n - 4
3 x 3 = 2 + 10
OR
3 x 3 = 2 + 10 - 3
n x 2 = 20
10
8n + 11 = output
input = 7
output = ?
67
Input Output
1 9
2 11
3 13
2n + 7
9 / 3 = 10 - 4
9 / 3 + 3 = 10 - 4
OR
9 / 3 = 10 - 4 - 3
n / 3 = 10
30
7n - 20 = output
input = 30
output = ?
190
Input Output
10 15
11 18
12 21
3n - 15
3 x 3 + 2 = 24 / 6 + 18
3 x 3 + 2 + 11 = 24 / 6 + 18
OR 3 x 3 + 2 = 24 / 6 + 18 - 11
OR (3 x 3 + 2) x 2 = 24 / 6 + 18 - 11
OR 3 x 3 + 2 = (24 / 6 + 18) / 2
3n + 2 = 11
3