Thirteen is at least the difference of a number v and 1.

Answer and explanation:

Given : Expression 'Thirteen is at least the difference of a number v and 1'.

To find : Write the expression ?

Solution :

'Thirteen is at least the difference of a number v and 1'.

"at least" means "greater than or equal to".

The difference of a number v and 1 = v-1

So, Number 13 is greater than or equal to the v-1

i.e.

Solving the expression,

Add 1 both side,