Chap 6 Error Analysis Homework 2 Ex 6.2 Q2(e)

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

2 comments:

  1. From line 2 onwards, it should have been:

    12(2y/3+5y/4)= 12(y/6-8)
    (24y/3)+(60y/4)= (12y/6-96)
    23y= 2y-96
    21y= -96
    y= -(32/7)

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  2. From line 2 onwards, he should be doing this instead:
    4(2y) + 3(5y) = 2(y) - 96
    8y + 15y = 2y - 96
    21y = -96
    y = - 4/4/7

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