Mathematics
7 Online
OpenStudy (anonymous):
3x+7=2x solve
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OpenStudy (lgbasallote):
try subtracting both sides by 2x what do you get?
OpenStudy (anonymous):
2x-7 or 2x-3x
OpenStudy (lgbasallote):
it's 3x - 2x
OpenStudy (anonymous):
3x+7=2x
3x-2x+7=2x-2x
What do you get?
OpenStudy (anonymous):
1x+7
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OpenStudy (anonymous):
you forgot something.
OpenStudy (lgbasallote):
you only want x so what do you do?
OpenStudy (anonymous):
minus 1x from 1x and 7
OpenStudy (anonymous):
then what do you get?
OpenStudy (lgbasallote):
no no..you want x..you dont want to cancel x! :(
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OpenStudy (anonymous):
oh you divide
OpenStudy (anonymous):
You are confused because you didn't write the whole equation down.
Lets start again
3x-2x+7=2x-2x
what does that become? Write it down.
OpenStudy (anonymous):
|dw:1335597390706:dw|
OpenStudy (anonymous):
help
OpenStudy (anonymous):
just type the answer I dont understand what you wrote.
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OpenStudy (anonymous):
1x+7
OpenStudy (anonymous):
hello romero
OpenStudy (anonymous):
That is close but you are missing something.
OpenStudy (anonymous):
tell me what i am missing
OpenStudy (anonymous):
romero
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OpenStudy (anonymous):
1x+7=0
OpenStudy (anonymous):
you want to get x by itself so what do you do in order to do that?
Subtract 7 from both sides.
OpenStudy (anonymous):
x = -7
OpenStudy (anonymous):
ok
1x=-7
OpenStudy (anonymous):
@Amberley Wow thank you for ruining this.
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OpenStudy (anonymous):
leave amberley i dont want answers i want to learn how to do it
OpenStudy (anonymous):
yay you did it. Anyways x1 is the same as saying 1*x=x
so it's x=-7
OpenStudy (anonymous):
7p-6=-4p
OpenStudy (anonymous):
good job. Sorry for giving you a hard time. If you have more questions Ill help you faster. hehe
OpenStudy (anonymous):
it ok i need the hard time
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OpenStudy (anonymous):
umm ok well easiest thing you can do is add 4p to both sides. What do you get then?
OpenStudy (anonymous):
nvm it is a positive 4 srry
OpenStudy (anonymous):
oh ok then you subtract 4p instead
OpenStudy (anonymous):
3p-6=0
OpenStudy (anonymous):
great now you want p by itself so you add 6 to both sides.
This will cancel the 6 from the left side.
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OpenStudy (anonymous):
then 3p=6 right
OpenStudy (anonymous):
p=3
OpenStudy (anonymous):
Close you have to divide 3 to both sides.
3p/3=6/3
p=6/3
p=2
OpenStudy (anonymous):
oh wrong division