| A | B |
| Subtract the sum of 15 + x from y | y - (15 + x) |
| Add n and 12; then multiply by x | x (n + 12) |
| Add n and 20; then multiply by x | x (n + 20) |
| Subtract 25 from x; then add n | x - 25 + n |
| Subtract 2 from n; then add x | n - 2 + x |
| Divide 30 by 3; then multiply by 5 | 30/3 x 5 |
| Divide 25 by 5; add 10 | 25/5 + 10 |
| 5 times the sum of 10 + x | 5 ( 10 + x ) |
| 15 more than the product of 5 and x | 5x + 15 |
| 40 more than the product of 10 and x | 10x + 40 |