Collecting like terms Quiz

What is a variable in algebra?

• A constant value that does not change.

• A symbol used to represent an unknown value.

• A type of equation that has no solution.

• A method for solving quadratic equations.

Simplify the expression: 11(9 + d)

• 11d + 99

• 11d + 90

• 9d + 99

• 11d + 9

Simplify the expression: 3t + 7y + t + 3y

• 4t + 10y

• 3t + 10y

• 5t + 7y

• 4t + 7y

What does it mean to combine like terms?

• To add or subtract terms that have the same variable and exponent.

• To multiply terms with different variables.

• To divide terms with the same exponent.

• To rearrange terms in an equation.

What is the first step in simplifying an expression?

• Identify and combine like terms.

• Distribute the terms.

• Factor the expression.

• Add or subtract the constants.

Evaluate when a = 15: 2(a - 5) + 2

• 20

• 22

• 24

• 18

What is the purpose of parentheses in an expression?

• To indicate which operations should be performed first.

• To group numbers together for addition.

• To separate different variables in an equation.

• To indicate the end of an expression.

Simplify the expression: 3x + 2x

• 4x

• 5x

• 6x

• x

What is the coefficient in the term 5x?

• 3

• 5

• 7

• 10

Evaluate 3x + 8 when x = 2

• 10

• 12

• 14

• 16