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29 May, 03:52

Kim's teacher has marked this problem as one to recheck, but Kim cannot determine what she has done incorrectly. Identify Kim's error and write a correct solution.

Six less than 2 times a number is 50. What is the number?

2x - 6 = 50 (line 1)

2x - 6 - 6 = 50 - 6 (line 2)

2x = 44 (line 3)

2x : 2 = 44 : 2 (line 4)

x = 22 (line 5)

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Answers (1)
  1. 29 May, 05:41
    0
    In line 2 she should have added 6 to each side not subtracted it from each side like this
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