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OpenStudy (anonymous):
\[\frac{ m-3 }{ 3m-9 }\]
OpenStudy (anonymous):
Actually just factorise 3 on the bottom.\[3m-9 = 3(m-3)\]does that make sense?
OpenStudy (anonymous):
no, but i dont understand factoring....
Ill trust you though. What next?
OpenStudy (anonymous):
But can you see how \[3(m-3)\]when you multiply out becomes\[(3\times m) -(3 \times 3)\]?
OpenStudy (anonymous):
yeah...
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OpenStudy (anonymous):
\[{m-3 \over 3(m-3)}\]We can cancel the (m-3)\[{1\cancel{m-3} \over 3\cancel{(m-3)}}\]
OpenStudy (anonymous):
Which leaves\[\frac{1}{3}\]
OpenStudy (anonymous):
Hope that helps! Let me know if there is any part you don't get.
OpenStudy (anonymous):
Where did you get the one from?
OpenStudy (anonymous):
Well we have \[(m-3)\]right? How many (m-3) do we have? We have 1. On the bottom of our equation we have \[3(m-3)\]How many (m-3) do we have? We have 3.
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OpenStudy (anonymous):
The 1 was always there but there was no need to write it.