Addition
The sum of 10 and a number n
10 + n
A number b decreased by 14
b - 14
The product of a number x and 8
8x
A number x divided by 7
x / 7
12 times the difference of a number r and 7
12(r - 7)
12 more than m machines
12 + m
Your aunt's age a minus 25
a - 25
6f
The total number of seashells s divided by 10
s / 10
11 minus the product of 5 and a number k
11 - 5k
5 more than a number
5 + x
9 less than k
k - 9
Twice x
2x
m divided by 6
m / 6
4 more than twice x
4 + 2x
8 more than a number
8 + x
A number subtract 15
x - 15
You and your four friends plan a surprise party. Each of you contributes the same amount of money m for food.
5m
The quotient of 5 and a number
5 / n
For a walk-a-thon a sponsor committed to give you a flat fee of $5 plus $2 for every mile m you walk.
A number increased by 7
x + 7
Arturo purchased a package of 50 blank CDs. After he used x CDs, he had x less than 50 CDs remaining.
At the grocery store, Henry bought c pounds of cashews for $4.99 per pound.
Grace wants to divide the job of writing x invitations to the party equally among 4 committee members. Write an expression to determine the number of invitations she will have each committee member write.
x / 4
A cell phone company charges $40 per month plus a $35 activation fee.
40 + 35x