Adding and Subtracting Expressions

Front

What is the result of (2x + 3) + (x + 4)?

Back

3x + 7

Front

What is the result of (10x + 2) - (8x - 4)?

Back

2x + 6

Front

What is the result of (6x + 9) - (4x + 6)?

Back

2x + 3

Front

What is the result of (8 - u) - (5u + 1)?

Back

-6u + 7

Front

What is the definition of an expression in mathematics?

Back

A combination of numbers, variables, and operators (like + and -) that represents a value.

Front

What does it mean to simplify an expression?

Back

To combine like terms and reduce the expression to its simplest form.

Front

What are like terms?

Back

Terms that have the same variable raised to the same power.

Front

What is the distributive property?

Back

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

Front

What is the difference between an equation and an expression?

Back

An equation states that two expressions are equal, while an expression does not have an equality sign.

Front

How do you combine like terms in the expression 3x + 4x + 5?

Back

You add the coefficients of like terms: 3x + 4x = 7x, so the result is 7x + 5.