- Thread starter mszaemama
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- Sep 1, 2005

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When it says to simplify, it simply means -6+4, because minus a negative equals plus a positive.

Right.mszaemama said:so it means to just write out the equation not solve it??? l-3l would be 3 right?!?

Simplify really means "go as far as you can...";

-6 - (-4)

= -6 + 4

= -2

There was no equation to solve.

An equation would look like: x - 1 = -6 - (-4)

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-(6-4) = -2 -- That is both simplified and simpler looking.

1/sqrt(2) = sqrt(2)/2 -- Looks about the same, but MANY teachers and texts consider it "simplified".

11/2 = 5½ -- I think this one went the wrong direction. This "simplification" actually made it look worse and made it less useful.

It's sort of a judgment call, sometimes.