| A | B |
| Two times a number plus five is 10 | 2n +5 = 10 |
| The quotient of a number and six is three. | q/6 = 3 |
| The difference between three and five times two is thirteen. | (2-5) X 2 = 13 |
| The product of ten and a number is fifty | 10k= 50 |
| Two times a number increased by six is twelve. | 2n + 6 = 12 |
| A number diminshed by two times the product of six and nine is 18 | n - 2 x ( 6 x 9) = 18 |
| The sum of a number and eleven is twenty | n + 11 = 20 |
| A number spilt by four decreased by two is five. | n/4 - 2 = 5 |
| Five times a number diminished by three is twenty-one. | 5n - 3 = 21 |
| The difference between ten and a number is two. | 10 - n = 2 |