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pooja195 (pooja195):
-3|2x-6|= -12
divide both sides by 3
now we have this
|2x−6|=4
an absolute value has 2 solutions one positive and one negative
2x-6=4
2x-6=-4
solve both for x
OpenStudy (lina17):
? im kinda lost
pooja195 (pooja195):
on which part?
OpenStudy (lina17):
the sovle both for x what em i suppose to do
pooja195 (pooja195):
2x-6=4
simply isolate it
start by adding 6 to both sides
-6+6=?
4+6=?
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OpenStudy (lina17):
so then you would get 2x=2 ?
OpenStudy (lina17):
or theres no solution
OpenStudy (lina17):
?
pooja195 (pooja195):
Not quite
\[\huge~\rm~ 2x−6+6=4+6\]
\[\huge~\rm~ 2x=10\]
divide both sides by 2
x= ?
OpenStudy (lina17):
so x =5
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pooja195 (pooja195):
Good now for the 2nd solution you try it! :)
2x-6=-4
OpenStudy (lina17):
isnt that the one we just did ?
pooja195 (pooja195):
it has a negative 4 keep in mind that an absolute value has 2 solutions
OpenStudy (lina17):
oh okay let me try
OpenStudy (lina17):
so it would just be x
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OpenStudy (lina17):
x=0
OpenStudy (lina17):
or i mean x=1
pooja195 (pooja195):
correct :)
pooja195 (pooja195):
x= 1
pooja195 (pooja195):
So what would our 2 answers be?
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OpenStudy (lina17):
thanks
can you help me on one more problem
pooja195 (pooja195):
sure :)
OpenStudy (lina17):
its |x-2|+10=12
pooja195 (pooja195):
ok any ideas on what to do first?
OpenStudy (lina17):
do i subtract 10 on each side
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OpenStudy (lina17):
?
pooja195 (pooja195):
*yes
OpenStudy (lina17):
because i have to isolate the x
OpenStudy (lina17):
ok the answer i got was x= -4 and x=0
pooja195 (pooja195):
correct set up the two problems
x-2=2
x-2=-2
Perfect :D
welll done!
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