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OpenStudy (anonymous):
2x+9=5x-12 can someone please help me??
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OpenStudy (skyphos):
This is English...lol
OpenStudy (skyphos):
Anyway... what you do is take away 5x on the right
OpenStudy (skyphos):
so 5x-5x cancels each other out..so your equation should look like, 2x-5x+9=-12 (because what you do on one side, you do to the other)
OpenStudy (skyphos):
you subtract 2x-5x, you get -3x....so -3x+9=-12
OpenStudy (skyphos):
You isolate -3x by getting rid of 9 by subtracting it, so 9-9=0..... then you do the same on the other side...so -3x=-21
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OpenStudy (skyphos):
divide by -3 on both sides and x=7
OpenStudy (skyphos):
:D
OpenStudy (anonymous):
next time post on math!
OpenStudy (kohai):
Math questions belong in math chat
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