Ask your own question, for FREE!
Mathematics 19 Online
OpenStudy (anonymous):

10 < –3x + 1

OpenStudy (ash2326):

\[10<-3x+1\] Subtract both sides by 1, what would you get? @ahoward79

OpenStudy (anonymous):

9 < -3x

OpenStudy (ash2326):

Good, now divide both sides by 3

OpenStudy (anonymous):

you mean -3?

OpenStudy (ash2326):

We can do that also but let's divide by 3

OpenStudy (anonymous):

Ok, 3.

OpenStudy (ash2326):

What do you get now?

OpenStudy (anonymous):

3

OpenStudy (ash2326):

\[9<-3x\] Divide both sides by 3 \[\frac 9 3< \frac{-3x}{3}\] What would you get?

OpenStudy (anonymous):

3 < x

OpenStudy (ash2326):

Note that there is a minus sign, you can't ignore it \[3<-x\]

OpenStudy (ash2326):

Do you get this?

OpenStudy (anonymous):

Can we divide by -3 instead?

OpenStudy (anonymous):

Then we would get -3 > x

OpenStudy (ash2326):

Yes we can :) I'll explain you this way, we have \[3<-x\] Now multiply both sides by -1, the sign of inequality will change \[-3>x\]

OpenStudy (ash2326):

Do you get it?

OpenStudy (anonymous):

Yes, Thank you

Can't find your answer? Make a FREE account and ask your own questions, OR help others and earn volunteer hours!

Join our real-time social learning platform and learn together with your friends!
Can't find your answer? Make a FREE account and ask your own questions, OR help others and earn volunteer hours!

Join our real-time social learning platform and learn together with your friends!