Tuesday, March 30, 2010

the answer

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so students~

did you finish your work?

“simplify 9x-7i > 3(3x-7u)”

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so here’s the answer…

9x - 7i > 3(3x-7u)

9x - 7i > 9x - 21u [multiply the 3 in the bracket]

9x - 9x - 7i > -21u [bring the 9x to the LHS]

-7i > –21u

7i < 21u [change the symbols]

i< 3u [divide by 7]

i <3 u

i u

i u friend^^

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