Work Step by Step
Since we are adding two numbers with the same sign, we add their absolute values and then use the same sign that they have. -9 - 10 = -(9 + 10) = -19
You can help us out by revising, improving and updating this answer.Update this answer
After you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publish your submission or provide feedback.