| A | B |
| The sum of 12 and 5 times a number is equal to 30 | 12+5x=30 |
| The sum of three times a number and 6 is 24 | 3x+6=24 |
| Four subtracted from the product of 5 and a number is 31. | 5x-4=31 |
| The quotient of a number and 6, added to 8 is 10 | x/6+8=10 |
| The difference of two times a number and 21 is that number divided by 2. | 2x-21=x/2 |
| The price of a movie ticket is $5 for children under 12, $2 less than adults. | 5=x-2 |
| You have $25. You want a book that is $34. How much more do you need? | 25+x=34 |
| The number of cars decreased by 20is 64. | x-20=64 |
| The cost of 10 shirts at x dollars each is $77. | 10x=77 |
| The number of books divided by 24 students is 3 books per student. | x/24=3 |
| The number of cats increased by 8 kittens is 12. | x+8=12 |
| Seven is the sum of x and 5 | 7=x+5 |
| The quotient of x and 7 is 5. | x/7=5 |
| A number times 38 is 152. | 38x=152 |
| The quotient of 12 and 4 times a number is 1. | 12/4x=1 |
| Sixteen equals the number of tennis shoes decreased by 3. | 16=x-3 |
| Two hours equals a number of miles divided by 8 miles per hour. | x/8=2 |
| The number of minutes divided by 60 is 6 hours. | x/60=6 |
| One tv is $150 less than the one that is $400. | 400=x-150 |
| The area of the rectangle is 24 square cm. One side is 8 cm. | 8x=24 |