| A | B |
| Six times the quantity of six minus a number | (6)(6 - x) |
| One plus a number | 1 + x |
| One half of the quantity of one decreased by a number | 1/2(1 - x) |
| Nine plus the difference of eight and a number | 9 + (8 - x) |
| Seven divided by the quantity of seven decreased by a number | 7/(7 - x) |
| Twice the quantity of nine less than a number | 2(x - 9) |
| Eight minus the quantity of nine more than a number | 8 - (9 + x) |
| Two plus the quantity of eight less than a number | 2 + (x - 8) |
| Two divided by the difference of one and a number | 2/(1 - x) |
| Five plus the quantity of four less than a number | 5 + (x - 4) |
| Eight plus the difference of two and a number is twice another number. | 8 + (2 - x) = 2y |
| One half of the quantity of one fifth of a number equals another number. | 1/2(1/5x) = y |
| Four minus the product of nine and a number is twice the same number. | 4 - (9x) = 2x |
| Five plus twice a number equals another number. | 5 + (2x) = y |
| Nine is five decreased by the quantity of one ninth of a number. | 9 = 5 - (1/9x) |
| Six is one half of the sum of nine and a number. | 6 = 1/2(9 + x) |
| Five divided by the difference of one and a number is one. | 5/(1 - x) = 1 |
| Three equals two plus the difference of nine and a number. | 3 = 2 + (9 - x) |
| Four less than the product of three and a number is twice another number. | (3x) - 4 = 2y |
| Three equals twice the quantity of one increased by a number. | 3 = 2(1 + x) |