Math 4 - Prealgebra

What is the definition of a variable?

• a value that can be substituted for a variable to make an equation true

• a letter used to represent a number in an equation or expression

• a number multiplied by a variable

• a statement in a combination of numbers, variables, functions (such as addition, subtraction, multiplication or division etc.) 

What is the definition of a coefficient?

• a statement in a combination of numbers, variables, functions (such as addition, subtraction, multiplication or division etc.) 

• a letter used to represent a number in an equation or expression

• a number multiplied by a variable

• a value that can be substituted for a variable to make an equation true

3x = 30

• is an example of an equation

• is an example of an expression

• is an example of a solution

• is an example of a varible

9+3X

• is an example of an equation

• is an example of an expression

• is an example of a coefficient

• is an example of a variable

In the following expression 9y+3, 9 is considered the

• expression

• equation

• coefficient

• variable

In the following expression 9y+3, y is considered the

• expression

• equation

• coefffient

• variable

What is the definition of a solution?

• a value that can be substituted for a variable to make an equation true

• a mathematical statement consisting of an equal symbol between two algebraic expressions that have the same value

• a statement in a combination of numbers, variables, functions (such as addition, subtraction, multiplication or division etc.) 

• a number multiplied by a variable

What is the definition of an expression?

• a value that can be substituted for a variable to make an equation true

• a statement in a combination of numbers, variables, functions (such as addition, subtraction, multiplication or division etc.) 

• a mathematical statement consisting of an equal symbol between two algebraic expressions that have the same value

• a letter used to represent a number in an equation or expression

What is the definition of an equation?

• a value that can be substituted for a variable to make an equation true

• a statement in a combination of numbers, variables, functions (such as addition, subtraction, multiplication or division etc.) 

• a mathematical statement consisting of an equal symbol between two algebraic expressions that have the same value

• a letter used to represent a number in an equation or expression

In 3x = 30, how do I solve for x?

• add each side by 3

• subtract each side by 3

• divide each side by 3

• multiply each side by 3