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Mathematics 21 Online
OpenStudy (anonymous):

solve a+4<3 or a+1<8

OpenStudy (anonymous):

solve for a right?

OpenStudy (anonymous):

the options i have are a. {a|a<1 or a<7} b. {a|a<-1 or a<7} c. {a|a<-1 or a<-7} d. {a|a<-1 or a<6}

OpenStudy (anonymous):

Umm that's not what I asked.

OpenStudy (anonymous):

well im not sure so i figured the options are then next best thing

OpenStudy (anonymous):

We are.

OpenStudy (anonymous):

That means we want a to be by itself.

OpenStudy (anonymous):

a+4<3 That means for this part we want to get rid of that 4 in the left hand side. How do we do that?

OpenStudy (anonymous):

subtract it on both sides

OpenStudy (anonymous):

Yes a+4<3 a+4-4<3-4 a<3-4 a<-1

OpenStudy (anonymous):

Can you see what I did there?

OpenStudy (anonymous):

ya that makes perfect sense..thanks for the help

OpenStudy (anonymous):

Yeah and do the same thing for the last part

OpenStudy (anonymous):

a+1<8 subtract 1 from both sides

OpenStudy (anonymous):

a+1<8 a+1-1<8-1 a<7

OpenStudy (anonymous):

Now you have both parts. Look at the answer choice and see which one has both of the parts just like we solved them

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