Find an equation for the word problem: "The sum of 5 and a number is -5."
x + 5 = -5
This operation can be described using "increased by."
Addition
Find an equation for the word problem: "The difference of a number and 4 is 9."
x - 4 = 9
Expressions that contain constants, variables and/or operations are called _____.
Algebraic Expressions
This operation can be described using "groups of."
Multiplication
A mathematical statement where two expressions are shown to be equal is called an _____.
Equation
A symbol or letter that is used to represent a value that can change is called a _____.
Variable
This operation can be described using "split up into equal groups."
Division
This operation can be described using "the difference between."
Subtraction
Find an equation for the word problem: "A number decreased by 13 is equal to 7."
x - 13 = 7
The value of a variable that makes an equation true is called the _____.
Solution
Expressions that contains only constants and/or operations are called _____.
Numerical Expressions
A value that does not change is called a _____.
Constant
A combination of symbols, operations, and/or constants that show the value of something is called an _____.
Expression
Find an equation for the word problem: "Two less than a number is -2."
x - 2 = -2
Find the solution for x.
x = 8/9