Step by step
The question
Question: work out −5 − (−9).
−5 − (−9)
1 Take away
Taking away a negative is the same as adding.
− (−) = +
So −5 − (−9) becomes −5 + 9.
= −5 + 9
Start at −5.
Go up 9.
We land on 4.
= 4
So the answer is 4.
Answer
= 4