This can be represented using an inequality as follows:
x / (-3) - 10 >= -1
Where x is the unknown number.
To solve for x, we can first add 10 to both sides of the inequality:
x / (-3) >= -1 + 10
Simplifying:
x / (-3) >= 9
We can now multiply both sides of the inequality by -3. However, we have to reverse the inequality sign because we are multiplying by a negative number.
x <= -3 * 9
Simplifying:
x <= -27
Therefore, any number x that is less than or equal to -27 will satisfy the original inequality.