Understanding Parts of Equations

What is a variable in an equation?

• A number that stands alone

• A number in front of a variable

• A mathematical operation symbol

• A symbol representing an unknown number

Which of the following is a constant in the equation 4x + 7 = 19?

• 4

• None of the above

• x

• 7

In the equation 15a + 7b = 22, what are the coefficients?

• None of the above

• 22

• a and b

• 15 and 7

How many terms are in the equation x + 2 = 3?

• 4

• 1

• 2

• 3

What is the implied coefficient of x in the equation x + 2 = 3?

• 1

• 2

• 3

• 0

In the equation 14 = -y, what is the coefficient of y?

• 1

• 14

• -1

• 0

How does a subtraction operator affect the term that follows it?

• It makes the term negative

• It multiplies the term

• It adds to the term

• It divides the term

In the equation -y = x - 2, what is the constant?

• -2

• x

• y

• None of the above

What is a coefficient?

• A number in front of a variable showing multiplication

• A mathematical operation symbol

• A symbol representing an unknown number

• A number that stands alone

Which of the following is an operator?

• +

• 7

• x

• 4