Expressions Review Flashcard

Front

Combine like terms in the expression 5x + 2y - 3x - 4y.

Back

2x - 2y

Front

Simplify the expression 3(2x - 5) + 4x.

Back

10x - 15

Front

Combine like terms in the expression 4x + 2y - 3x + 5y.

Back

x + 7y

Front

Evaluate the expression 2(x - 4) + 3 when x = 6.

Back

7

Front

Simplify the expression 2(3x + 4) - 5x.

Back

x + 8

Front

What are like terms?

Back

Like terms are terms that have the same variable raised to the same power.

Front

What does it mean to simplify an expression?

Back

To simplify an expression means to combine like terms and perform any operations to make it easier to understand.

Front

What is the distributive property?

Back

The distributive property states that a(b + c) = ab + ac.

Front

How do you evaluate an expression?

Back

To evaluate an expression, substitute the variable with a given number and perform the operations.

Front

What is a variable in algebra?

Back

A variable is a symbol, usually a letter, that represents an unknown number.