Question Simplify the expression −2o Evaluate r−o−o−rThe sum of two opposites equals 0 More Steps Evaluate r−rCollect like terms (1−1)rAdd the coefficients 0×rCalculate 0 0−o−oRemove 0 −o−oCollect like terms by calculating the sum or difference of their coefficients (−1−1)oSolution −2o Show Solution