1 - n = n - 1 Solve for n in the equation 1 - n = n - 1 Step 1: Group variables: We need to group our variables -n and n. To do that, we subtract n from both sides -n + 1 - n = n - 1 - n Step 2: Cancel n on the right side: -2n + 1 = -1 Step 3: Group constants: We need to group our constants 1 and -1. To do that, we subtract 1 from both sides -2n + 1 - 1 = -1 - 1 Step 4: Cancel 1 on the left side: -2n = -2 Step 5: Divide each side of the equation by -2 -2n/-2 = -2/-2 n = 1 Source