| A | B |
|---|
| double x | 2x or x + x |
| triple x | 3x or x + x + x |
| twice x | 2x or x + x |
| 5 less x | 5 - x |
| 5 less than x | x - 5 |
| 5 is less than x | 5 < x |
| 5 is 4 less than x | 5 = x - 4 |
| 6 increased by x | 6 + x or x + 6 |
| 6 more than x | 6 + x |
| 6 is more than x | 6 > x |
| 6 is 3 more than x | 6 = 3 + x |
| Average the quantities: 4, 10, & 10 | (4 + 10 + 10) / 3 = 8 |
| Average the unknown quantities: x, x, x, & x | ( 4x) / 4 = x |
| Average 3x, 6x, & 12x | 7x |
| Average the expressions: x + 2, x - 4, x + 7 | (3x+5) / 3 = x + 5/3 |
| You want a 90% course average. If you scored 70%, 95% and 85% on the first 3 exams, what must you score on exam 4 to get the 90% | 110% { 90% is not possible.} |
| six more than x | 6 + x |
| a number added to 8 | n + 8 |
| a number increased by 50 | n + 50 |
| a number decreased by 2 | n - 2 |
| difference between a number and 8 | n - 8 |
| difference between 8 and a number | 8 - n |
| 20 percent of a number | .20n or 20%*n |
| sixty times a number | 60n |
| quotient of a number and four | n/4 |
| quotient of four and a number | 4/n |
| The product of three times a number and 8 | 3n*8 |
| The product of three times a number is 8. | 3n = 8 |
| one half a number is sixteen. | 1/2 n = 16 |
| six times the sum of a number and one | 6 ( n + 1) |
| two times the difference of a number and 5 | 2 ( n - 5) |
| Two subtracted from n | n - 2 |
| three subtracted from ten times a number | 10n - 3 |
| eight subtracted from two times a number is that number plus 1 | 2n - 8 =n+1 |
| The sum of 3x and 6 is the product of the number and 7 | 3x + 6= 7x |
| sum of two consecutive numbers | n + ( n + 1) |
| sum of two consecutive even numbers | 2n + ( 2n + 2) |
| Sum of two consecutive odd numbers | (2n +1) + (2n + 3) |
| Cost per pound if 6 pounds costs $n | $n / 6 |
| cost per pound if x pounds cost $4 | $4/x |
| 4 times a number added to 9 times a different number | 4x + 9y |
| miles per hour if travel x miles for 3 hours | x/3 |
| An expression for an even number | 2n |
| An expression for an odd number | 2n + 1 |
