9514 1404 393
Answer:
second step is wrong; x = 5
Explanation:
The correct solution is ...
3(x -3) +9 = 15
3x -9 +9 = 15 . . . . . . . not 3x -3
3x = 15
x = 5
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Jeremy did what a lot of students do -- failed to apply the outside factor to all of the terms in parentheses.