Ask your own question, for FREE!
Mathematics 14 Online
OpenStudy (anonymous):

5a-2<18 I would like to know how to solve this type of equation ...i know how to do one step equations but not two step if i could have a explanation that would be great ^_^

ganeshie8 (ganeshie8):

goal is to isolate \(a\) all by itself

OpenStudy (anonymous):

Add and then divide! Those are your two steps. Remember you have to do the same thing to both sides of the =.

ganeshie8 (ganeshie8):

start by adding 2 both sides

OpenStudy (anonymous):

okay then what

ganeshie8 (ganeshie8):

wat do you get when u add 2 both sides ? :)

OpenStudy (anonymous):

18+2=20 now do i add 2 to the 5?

ganeshie8 (ganeshie8):

remember, you cant add apples and coconuts

OpenStudy (anonymous):

\(5a - 2 + 2\) = ?

ganeshie8 (ganeshie8):

5a-2<18 +2 +2 5a < 20

OpenStudy (anonymous):

oh u add the 2 to the 2 okay

ganeshie8 (ganeshie8):

yup, we can add like terms. numbers are like terms.

OpenStudy (anonymous):

okay so now what?

ganeshie8 (ganeshie8):

thats first step, can u guess wat wud be our second step ?

OpenStudy (anonymous):

division?

ganeshie8 (ganeshie8):

our goal is to get \(a\) all by itself

ganeshie8 (ganeshie8):

Yes :) divide 5 both sides

ganeshie8 (ganeshie8):

5a-2<18 +2 +2 5a < 20 /5 /5 a < 4

ganeshie8 (ganeshie8):

we're done. lets do another quick, so u remember the process ?

OpenStudy (anonymous):

yes :D

ganeshie8 (ganeshie8):

do u have another problem like this, or shall i cookup some example for you ? :)

ganeshie8 (ganeshie8):

try this :- ``` 3a + 1< 7 ```

OpenStudy (anonymous):

wait i have one but its a little harder |dw:1382163160904:dw|

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!