Writing Expressions

An expression is a combination of numbers, variables, and operators (such as +, -, *, /) that represents a value.

It means to multiply the number by 5, represented as $$5x$$ where x is the number.

It is represented as $$2x$$ where x is the number.

It means to add 3 to the number, represented as $$x + 3$$ .

'The sum of a number and 3' is $$x + 3$$ , while 'three less than a number' is $$x - 3$$ .

It is represented as $$3 - x$$ where x is the number.

It means to subtract 8 from nine times the number, represented as $$9x - 8$$ .

It is represented as $$\frac{x}{4}$$ where x is the number.

It is represented as $$7j + 3$$ .

It means to add 6 to the number, represented as $$x + 6$$ .