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October 22, 2014

October 22, 2014

Posted by **Helen** on Tuesday, April 21, 2009 at 10:09pm.

~why is the answer (1/2)(m-5)?

- math -
**Reiny**, Tuesday, April 21, 2009 at 10:26pmthe transformation is :

multiply by 2, then add 5

to get back to where we started from, we have to not only do the inverse of each operation but also reverse the order in which these operations were done.

the last thing we did was add 5, so the first thing we have to do in the inverse is to subtract 5, thus the (m-5)

the first thing we did was multiply by 2, so the last thing we do in the inverse is divide by 2, thus the (m-5)/2

or

(1/2)(m-5)

- math -
**Helen**, Tuesday, April 21, 2009 at 10:28pmthank you

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