Mathematics
7 Online
OpenStudy (anonymous):
How do I do this?
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OpenStudy (anonymous):
OpenStudy (phi):
there are a few ways to go...
one way is "flip" both sides (so that x-2 is up top)
OpenStudy (anonymous):
Is that the easiest way?
OpenStudy (phi):
try it.
OpenStudy (anonymous):
How do you flip? Multiply x-2 by both sides?
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OpenStudy (phi):
multiplying both sides by (x-2) also works. That another way to go.
OpenStudy (phi):
by flip, I mean make each side the reciprocal. a/b becomes b/a
OpenStudy (anonymous):
Ok so it would be x-2/8 = 1/4?
OpenStudy (phi):
yes.
next multiply both sides by 8
OpenStudy (anonymous):
x-2 = 2
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OpenStudy (anonymous):
Then x = 0
OpenStudy (anonymous):
That is?
OpenStudy (phi):
after
x-2= 2
I would add +2 to both sides
OpenStudy (anonymous):
Is there a way to check this?
OpenStudy (phi):
like this
x-2 +2 = 2 + 2
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OpenStudy (anonymous):
Thank!
OpenStudy (phi):
what did you get ?
OpenStudy (anonymous):
Its not done? lol
OpenStudy (phi):
x is not zero
OpenStudy (anonymous):
Where did the plus 2 come from?
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OpenStudy (phi):
do you remember you got to
x-2 = 2
?
what is the next step ?
OpenStudy (anonymous):
Yes. Solving for x?
OpenStudy (anonymous):
By subtracting the 2?
OpenStudy (phi):
If you subtract 2 , you have to do that to both sides
x-2 -2 = 2 - 2
the right side simplifies to 0
the left side is not *just* x by itself.
OpenStudy (anonymous):
Oh...
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OpenStudy (phi):
I would add +2 to both sides because that will make x by itself
OpenStudy (anonymous):
Ok. That makes sense.