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Mathematics 7 Online
OpenStudy (anonymous):

Find the solution to the inequality -8x + 10(x + 2) < 40

OpenStudy (camerondoherty):

I mean x<10

OpenStudy (muzzack):

okay lets do this lets first use the distribution -8x+10x+20<40 now lets isolate x -8x+10x<20 add both x's -2x<20 x>-10 wrong @camerondoherty

OpenStudy (camerondoherty):

forreal?

OpenStudy (anonymous):

No, she has to be right the answers are: x < 10, x < 19, x<30, x < 8

OpenStudy (camerondoherty):

Ha! @Muzzack

OpenStudy (muzzack):

@camerondoherty sorry did i miscalculate??

OpenStudy (muzzack):

when you divide a negative number in an inequality it changes the sign to the other side

OpenStudy (camerondoherty):

-x<-10 = x<10

OpenStudy (camerondoherty):

I think...

OpenStudy (camerondoherty):

whatevs

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