Positive 2 minus negative 7
\(2-(-7)\)
Anything minus a negative is the same as adding them together, as two negatives cancel out.
\(2-(-7)=2+7=9\)
You should try to learn from this old post
https://web2.0calc.com/questions/the-result-of-subtracting-a-negetive-integer-from-a-positive-integer-is-a-positve-integer
+895 
