Whats up people. I'm in Trig/PreCalc in school but I just moved to the United States a couple months ago so I never fully studied absolute value, since we didn't cover that much in Sweden.
We got this review for some California state test or something and this question is kind of weird. If I worked this problem correctly, steps B, C, and D all contain errors. However, the question says only one of them has an error. I provided a picture of the question at the bottom. Can someone tell me the answer as well as how they worked it? Maybe I just solved it wrong.