Writing Algebraic Expressions & Equations

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, often a letter, that represents an unknown value in mathematical expressions and equations.

Front

What does 'less than' indicate in algebraic expressions?

Back

'Less than' indicates subtraction. For example, '5 less than x' is written as x - 5.

Front

How do you represent 'the product of 5 and -3' in algebra?

Back

It is represented as 5 * (-3) or simply 5(-3).

Front

What is the difference between an expression and an equation?

Back

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

Front

How do you write 'four times a number' in algebraic form?

Back

It is written as 4x, where x is the variable representing the number.

Front

What does 'subtracted from' mean in algebraic expressions?

Back

'Subtracted from' indicates that the following quantity is being subtracted. For example, 'x subtracted from 7' is written as 7 - x.

Front

How do you express 'the difference of 7 and a number' in algebra?

Back

It is expressed as 7 - x, where x is the variable.

Front

What is the algebraic representation of 'when 4 is added to the number'?

Back

It is represented as x + 4, where x is the variable.

Front

How do you write '8 less than a number' in algebraic form?

Back

It is written as x - 8, where x is the variable.