Mathematics
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OpenStudy (anonymous):
3x+2[5-4(x+1)]=6(x-3)+2(x+5)
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OpenStudy (anonymous):
distribute the 4, distribute the 6, distribute the 2
OpenStudy (anonymous):
I solved and got x=16/13th's
OpenStudy (anonymous):
I got x=6/13
Directrix (directrix):
I got 10/13.
OpenStudy (anonymous):
at least we all got the same denominator! haha
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OpenStudy (anonymous):
True...now to find the numerator
Directrix (directrix):
Right on. Who wants to post his or her work first for the others to trouble-shoot?
OpenStudy (anonymous):
I got 3x=2[5-4x-1]=6x-18+2x+10
OpenStudy (anonymous):
*3x+2
OpenStudy (anonymous):
then 3x+10-8x-2=6x-18+2x+10
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OpenStudy (anonymous):
3x+10-8x-4=6x-18+2x+10
OpenStudy (anonymous):
ohhh -4 is where I messed up.
Directrix (directrix):
I got 3x=2[5-4x-1]=
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3x + 2[5 - 4x - 4] =
Directrix (directrix):
@oholmes --> And, then ... ?
OpenStudy (anonymous):
one second
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OpenStudy (anonymous):
Im confused I got 2/5th's
OpenStudy (anonymous):
okay...so we have 3x+2(5-4x-4)=6x-18+2x+10. Do we agree on that part?
OpenStudy (anonymous):
yees
OpenStudy (anonymous):
lets work with the left side first...
OpenStudy (anonymous):
okay I got 3x-10-8x-8=
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OpenStudy (anonymous):
3x+10-8x-8 after we distribute the 2
OpenStudy (anonymous):
ok
OpenStudy (anonymous):
combine like terms
OpenStudy (anonymous):
-5x+2
OpenStudy (anonymous):
3x-8x and 10-8
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OpenStudy (anonymous):
yep. now lets work on the right side
OpenStudy (anonymous):
6x-18+2x+10
OpenStudy (anonymous):
ok, 8x-8
OpenStudy (anonymous):
-5x+2=8x-8
OpenStudy (anonymous):
subtract 8x from both sides
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OpenStudy (anonymous):
i got 10/13
OpenStudy (anonymous):
-13x+2=-8; subtract 2 from from both sides
Directrix (directrix):
10/13 is the answer I got.
OpenStudy (anonymous):
good job!
OpenStudy (anonymous):
my adding/subtract was off! Sorry! :)
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Directrix (directrix):
Let's work another problem together in a new thread. @oholmes Post a question if you like.