Math Vocabulary

Express Yourself

Equivalent Expressions

Substitution

Solve It

A mathematical phrase that can contain numbers, variables, and operations

Expression

Seven times a number

7n

5(2x + 3)

10x + 15

Find the value of the expression when a = 1/3, b = 9, c = 5, and d = 10.

6a + 4

a = 6

5^2 - 9 /3

22

A mathematical sentence that states two expressions are equal

Equation

15 less than 3 times a number s

3s-15

4x - 8

4(x - 2) or 2(2x - 4)

Find the value of a when a = 1/3.

5a - 2/3

a = 1

Solve for s: 7s = 245

What is s = 35

Evaluate

Find the value of an algebraic expression by replacing each variable with a given value

1 more than 7 divided by a number

3(3x - 5)

9x - 15

Solve the equation when a = 1/3 and b = 9.

b^2 - 9a

a = 78

3 1/6 + f = 7 5/6

f = 4 2/3

Tells how many times to multiply the base by itself

Exponent

13 less than twice a number

2n - 13

1/2x + 3 + 1/2x

3 + x

Solve the expression: b = 9, c = 5, d = 10

1/2d + c^2 - b

21

Yelena needs to swim a total of 8 miles this week. So far she swam 5 3/8 miles. Use the equation

5 3/8 + m = 8 to find out how many more miles she needs to swim.

2 5/6

Two numbers whose product is 1

Reciprocal

6 times the quotient of a number divided by 3

6(h/3)

3(y + 1/4)

3/4 + 3y

Solve the expression: x = 10, y = 4, z = 5, and t = 2

1/2x + y^2 - 4z//t

11

The local animal shelter has 3 times as many cats as dogs. There are 27 cats at the shelter. Let x = the number of dogs at the shelter. Solve the equation 3x=27 to find the number of dogs at the shelter.

x = 9

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