Suppose we want to choose 7 objects, without replacement, from 10 distinct objects.
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In order to find out the answer to this question, we can distribute
Flip your problem around!
Add by
on each of your sides
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because they would give you the outcome of 
Keep:![-30 + 194 [/tex] because that'll give you: [tex]164](https://tex.z-dn.net/?f=-30%20%2B%20194%20%5B%2Ftex%3Cstrong%3E%5D%20because%20that%27ll%20give%20you%3A%3C%2Fstrong%3E%20%5Btex%5D164%20)
Your problem becomes:
Now, we have to divide by
on each of the sides
Like:
Cancel:
because it will give you a outcome of 
Keep:
because this will give you your answer
Good luck on your assignment and enjoy your day!
~
In order to find out the answer to this question, we can distribute
Flip your problem around!
Add by
Like:
Cancel out:
Keep:
Your problem becomes:
Now, we have to divide by
Like:
Cancel:
Keep:
Good luck on your assignment and enjoy your day!
~