Write Algebraic Expressions 2-3

Front

What is an algebraic expression?

Back

An algebraic expression is a mathematical phrase that can include numbers, variables, and operation symbols. It does not have an equality sign.

Front

Define a variable in algebra.

Back

A variable is a symbol (usually a letter) that represents an unknown number or value in an algebraic expression.

Front

How do you express 'the number h decreased by eight' in algebraic form?

Back

h - 8

Front

What is the algebraic expression for 'twenty decreased by x'?

Back

20 - x

Front

What does the expression '5 squared' represent in algebraic form?

Back

5^2 or 25

Front

What is the meaning of the expression '6x - 4'?

Back

It represents the product of six and a number x decreased by four.

Front

What is the difference between an expression and an equation?

Back

An expression is a combination of numbers, variables, and operations without an equality sign, while an equation states that two expressions are equal.

Front

What is the value of the variable in the expression 'x + 3 = 10'?

Back

x = 7, because you subtract 3 from both sides to solve for x.

Front

How would you write 'the sum of a number x and 12' as an algebraic expression?

Back

x + 12

Front

What does it mean to simplify an algebraic expression?

Back

To simplify an algebraic expression means to combine like terms and reduce it to its simplest form.