- #1

Stephen Tashi

Science Advisor

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## Main Question or Discussion Point

An algebra tutorial on the Mainland High School Algebra Lab stie

(http://www.algebralab.org/lessons/lesson.aspx?file=Algebra_AbsoluteValueEquations.xml)

Solves (example ii):

[itex] |2x -3] = x - 5 [/itex]

and obtains solutions [itex] x = -2 [/itex] and [itex] x = 8/3 [/itex]

I've emailed them about this twice and they haven't corrected it yet. Are there algebra texts that actually teach the fallacious method of solution used on that page?

(http://www.algebralab.org/lessons/lesson.aspx?file=Algebra_AbsoluteValueEquations.xml)

Solves (example ii):

[itex] |2x -3] = x - 5 [/itex]

and obtains solutions [itex] x = -2 [/itex] and [itex] x = 8/3 [/itex]

I've emailed them about this twice and they haven't corrected it yet. Are there algebra texts that actually teach the fallacious method of solution used on that page?