Writing algebraic expressions

Front

What is an algebraic expression?

Back

An algebraic expression is a mathematical phrase that can include numbers, variables, and operation symbols. For example, 3x + 5 is an algebraic expression.

Front

What does the term 'variable' mean in algebra?

Back

A variable is a symbol, often a letter, that represents an unknown value in an expression or equation. For example, in the expression 2x + 3, 'x' is the variable.

Front

What is the operation represented by the expression '3y'?

Back

The operation is multiplication. It means 3 times the value of y.

Front

How do you express '5 less than a number x' in algebraic form?

Back

x - 5.

Front

What does 'the sum of a and b' mean in algebra?

Back

It means to add a and b together, expressed as a + b.

Front

How do you write 'twice the value of z' in algebraic form?

Back

2z.

Front

What is the difference between '3x + 4' and '4 + 3x'?

Back

They are equivalent expressions; both represent the same value.

Front

How do you express 'the product of 7 and a number n' in algebraic form?

Back

7n.

Front

What does '3 times the sum of x and 2' look like in algebraic form?

Back

3(x + 2).

Front

What is the expression for '8 more than the variable m'?

Back

m + 8.