what is the answer to 10 - s when s = -3
s=-3
10-s=? Substitute s:
10-(-3)=10+3=13
10-s=13
Answer: 13
When you replace s with -3, it is 10--3. One is negative and one is positive, so you make -- ( subtract negative) into a +( plus add). So 10+3=13
