Linear Equations Statement of Equality

How many variables are there in equation 5x + 2x = 10x - 20?

• 0

• 1

• 2

• 3

Find the solution of 3x + 5x = - 2 - 38.

• x = - 5

• x = - 4

• x = 5

• x = 4

What property of equality is illustrated in x – 4 = 2, and 4 is added to both sides of the equation?

• addition

• subtraction

• multiplication

• division

The symbol “=” is used to indicate ______________.

• Equation

• Expression

• Inequality

• Equivalent

Identify what property of equality used in the condition“if 2x = -6, then x = -3”.

• Addition Property

• Subtraction Property

• Multiplication Property

• Division Property

Rose is thinking about getting a cell phone. One cell phone plan costs 10 cents per minute plus a monthly charge of $40. The other cell phone plan has a monthly charge of $30 but costs 15 cents per minute. Which equation shows the total monthly cost as being the same? Let m be the number of minutes used in a month.

• 0.10x + 40 = 0.15x + 30

• 40x + 10 = 30x + 15

• (0.10+0.15)x = 40 + 30

• 40 - 0.10x = 30 - 0.15x

• Division Property of Equality

• Multiplication Property of Equality

• Subtraction Property of Equality

• Addition Property of Equality

• Distributive Property

• Division Property of Equality

• Multiplication Property of Equality

• Subtraction Property of Equality

• Addition Property of Equality

• Distributive Property

What term relates to a straight line; in algebra, it refers to expressions or equations that graph as straight lines on a coordinate plane?

• Linear

• Variable

• Inequality

• Expression

Which term describes a mathematical statement that asserts the equality of two expressions, often containing an equal sign?

• Expression

• Inequality

• Equation

• Coefficient