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OpenStudy (anonymous):
Solve: 3x+9<4x+7 a. x>2 b. -x<-2 c. x<2 d. x>-2 @iGreen
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OpenStudy (lxelle):
You should really workout your basics before posting here. We are here to guide you and not give you answers. Note that.
OpenStudy (igreen):
\(3x + 9 < 4x + 7\) Subtract 9 to both sides: \(3x < 4x - 2\) Subtract 4x to both sides: \(-x < - 2\) Divide all terms by -1.. -2 / -1 = ? @pigglet
OpenStudy (anonymous):
2?
OpenStudy (igreen):
Yes. That gives us: \(x > 2\) Remember to switch the sign when dividing by a negative number!
OpenStudy (anonymous):
thank you for all your help!
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OpenStudy (igreen):
No problem.
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