Question

(r+13) - (r+15) - (r-17) - (r-19) =

Answer 1

To solve the given question, it should be in the form of an equation, given as:

r + 13 - r - 15 - r + 17 - r + 19 = 0

r - 3r + 49 - 15 = 0

-2r + 34 = 0

-2r = -34

or, 2r = 34

r = 17