Equation Vocabulary

Equation Vocabulary

The following is vocabulary words you will need to know for this chapter.

Expression

A math sentence with a number, variable or a combination of numbers and variables. There is NO equal sign.

Examples: 

 3x

4p + 8

-2x -3 + 9h

Equation

A math sentence where 2 mathematical expressions are equal.

Example: 5x + 9 = 24

-6y + 12 = y - 18

Multiple Select

Check each equation

• 4x + 9 =2 - 3

• 3f + 7

• x - 3 = 12

• 12.4m

Fill in the Blank

an expression is a math sentence that does not have an _____ sign.

Variable  Coefficient  Constant

Variable-a letter that represents a 

number example m, n, x…

Coefficient - a number in front of a letter.

  Example: 3x

Constant- a number by itself

For example 4d + 8  8 is a constant

Multiple Choice

Identify the variable in the following equation:

3x + 8 = 4 y - 2

• a and b

• x and y

• 3x and 4y

• -2 and 8

Multiple Select

Check all that apply. Identify the coefficients in the following equation:

7x + 8 - 2y = -5x +8

• 2

• -2

• 7

• -5

• 8

Inverse-

opposite.  As in solving equations do the inverse (opposite ) operation

Evaluate

to solve