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. [tex]13\geq v-1[/tex]
Solving the expression,
Add 1 both side,
[tex]13+1\geq v-1+1[/tex]
[tex]14\geq v[/tex]