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OpenStudy (gabbyalicorn):
Hi there!
Do you know what step to do first? If not, no worries! ^u^
OpenStudy (anonymous):
no i have no idea where to start
OpenStudy (gabbyalicorn):
Okay, that's fine. :)
We first subtract 15x from both sides.
OpenStudy (gabbyalicorn):
2x−4−15x=15x+9−15x
^ ^
−13x−4=9
OpenStudy (anonymous):
so next do you minus 4 from both sides
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OpenStudy (gabbyalicorn):
You are very close!
You actually add 4 to both sides.
OpenStudy (gabbyalicorn):
−13x−4+4=9+4
^ ^
−13x=13
OpenStudy (anonymous):
then you divide?
OpenStudy (gabbyalicorn):
Yes! :D
Do you know what you divide by?
OpenStudy (anonymous):
13?
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OpenStudy (gabbyalicorn):
So close!
It's actually -13
−13x/−13=13−/13
which equals....
OpenStudy (gabbyalicorn):
sorry, i though I posted that xD ^
OpenStudy (anonymous):
-1 would be the answer
OpenStudy (gabbyalicorn):
Yes, yes, yes!
OpenStudy (anonymous):
thank you so much
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OpenStudy (anonymous):
Can someone help me?
A motorboat travels 332 in 4 hours going upstream 555 and in 5 hours going downstream. What is the speed of the boat in still water, and what is the speed of the current?