Presumably you have some to choose from which you didn't share with us.
If "a" is multiplied or divided by a positive it will be negative.If "a" is added to a number less than 23 it will be negative.
The expression "-b".
HAZARD
Risk
What is an expression of possible loss, adverse outcome, or negative consequence in terms of probability and severity
Risk
a positive outcome, and a negative outcome
f
f
In mathematics, three negatives do not make a negative; rather, two negatives make a positive. When you multiply or add numbers, the rules of arithmetic dictate that a negative multiplied by a negative results in a positive. Introducing a third negative flips the sign back to negative. Therefore, the expression of three negatives leads to the conclusion that it is equivalent to a negative outcome.
negative
negative