Chap 6 Error Analysis Homework 2 Ex 6.2 Q2(a) #1

Go through the working and attempt to identify where the error is.

9 comments:

  1. he should add the x first before bringing it over

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  2. There is a mistake at Line 2.
    Instead of x + x = 60, it should be 5x = 60. Because the LHS of the equation is wrong. 4x + x = 4 x 15, Simplified to 5x = 60.

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  3. There is a mistake is at line 2 .It should be 5x =60 as in line when we multiply both sides by 4 the x should be multiplied too .

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  4. The mistake is in line 1 to 2, the mistake is x*4=x it should be x*4=4x

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  5. The mistake lies in line 1. If we use the method thought in class and multiply both sides by 4, 5x = 60.

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  6. In line 1, it should be 4x + x/4 = 15.

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  7. As he multiplied 15 by 4, he should have multiplied x by 4 instead of adding another x

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