Expressions and Equations Flashcard

Front

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

Back

2x - 6

Front

Which expression is equivalent to: -3(3x + 12)?

Back

-9x - 36

Front

Solve for x: 9x + 8 - 2x = 71. Fill in the blank: The value of x is ____.

Back

11

Front

If x = 2 and y = 5, find the numerical value of the expression 3x + 4y.

Back

26

Front

Solve for x: 5x - 15 = 0.

Back

3

Front

What is an expression in mathematics?

Back

A combination of numbers, variables, and operators (like +, -, *, /) without an equality sign.

Front

What is an equation in mathematics?

Back

A statement that two expressions are equal, often containing an equality sign (=).

Front

What does it mean to simplify an expression?

Back

To reduce it to its simplest form by combining like terms and eliminating parentheses.

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, allowing you to multiply a single term by two or more terms inside a parenthesis.