What is r+s+t when r = 26, s = - 12, and t = - 8?

a. 6

b. 22

c. 30

d. 46

All you have to do to solve this problem is insert the integer for the variable in the expression.

So, instead of having the variable expression r+s+t, you would have the integer expression 26-12-8.

If you combine 26 and - 12, you get 14-8.

If you subtract 14-8, you get 6.

Your final answer is a. 6.