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Mathematics 19 Online
OpenStudy (anonymous):

-3+1>4 How do you solve this inequality?

OpenStudy (zzr0ck3r):

there is nothing to solve you wrote -2>4 this is never true

OpenStudy (uri):

maybe she forget the x somewhere in the ques.

OpenStudy (anonymous):

Oops yeah you're right it's -3x+1>4 I'm so sorry >~<

OpenStudy (zzr0ck3r):

if you subtract 1 from both sides, what do you have?

OpenStudy (anonymous):

-3x>3 ???

OpenStudy (zzr0ck3r):

now divide by -3 and note that we flip the sign when we divide by or multiply by a negative number

OpenStudy (zzr0ck3r):

what do you have now?

OpenStudy (anonymous):

So 3x< 3 ?

OpenStudy (zzr0ck3r):

so we have -3x>3 we divide both sides and flip the sign x<3/-3 = -1

OpenStudy (zzr0ck3r):

so x<-1

OpenStudy (anonymous):

Ohh okay I think I got it now thanks!

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