Mathematics
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OpenStudy (jravenv):
Help me please
screencap in comments.
best answer rewarded
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OpenStudy (jravenv):
OpenStudy (isaiah.feynman):
You can subtract the right side from both sides as a start.
OpenStudy (jravenv):
wait what?
OpenStudy (isaiah.feynman):
Subtract the term on the right from both sides.
OpenStudy (jravenv):
you mean the fraction?
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OpenStudy (isaiah.feynman):
Yep. Sorry.
OpenStudy (jravenv):
4/n+3
OpenStudy (isaiah.feynman):
No. Rather do a cross multiplication. That's easier.
OpenStudy (isaiah.feynman):
So, \[14(n-4)=10(n+7)\]
OpenStudy (jravenv):
Okay, so what's next?
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OpenStudy (isaiah.feynman):
Can you solve for n from here?
OpenStudy (jravenv):
Um, I'm sorry I don't know how..
OpenStudy (isaiah.feynman):
First we distribute the 14 and the 10 through the parentheses. That gives us...
\[14n-56=10n+70\]
OpenStudy (isaiah.feynman):
Do you see a way to solve for n?
OpenStudy (jravenv):
Um no I'm sorry! .-.
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OpenStudy (isaiah.feynman):
Ever heard of "like terms"?
OpenStudy (jravenv):
Yes. you have to combine like terms but every time I look at the equation my mind goes blank, can you help me to break it down a bit more?
OpenStudy (isaiah.feynman):
Okay, well can you combine the like terms? you add the n's separately and the numbers separately.
OpenStudy (jravenv):
14+24n?
OpenStudy (isaiah.feynman):
It should be 4n=126. Solve for n from here.
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OpenStudy (jravenv):
Thank you