Question

Can someone please help me?
5<3x-1<17

Answer 1

first add 1 to all sides

after all that is done, divide all sides by 3 to isolate x

Answer 2

tell me what you get

Answer 3

You mean add 1 to 5 and 17?

Answer 4

yes

Answer 5

ok

Answer 6

I got x>7 but im not totally sure if its right or not.

Answer 7

5<3x-1<17

5+1<3x-1+1<17+1 ... add 1 to all sides

6 < 3x + 0 < 18

6 < 3x < 18

with me so far?

Answer 8

Im not the best at math haha

Answer 9

that's ok, that's what practice is for

Answer 10

yeah then u divide by 3?

Answer 11

yes

Answer 12

and u get 1<x<6
i added the 6 and 1 together

Answer 13

then from 6 < 3x < 18, you divide all sides by 3 to isolate x


6 < 3x < 18

6/3 < 3x/3 < 18/3

2 < 1x < 6

2 < x < 6

Answer 14

So 5<3x-1<17 turns into 2 < x < 6

Answer 15

crap. for some odd reason i thought 3 went into 6 once haha

Answer 16

that's ok, silly mistake

Answer 17

yeah haha

Answer 18

so the answer would be x<8?

Answer 19

no the answer is 2 < x < 6

Answer 20

it basically says in english "x is some number between 2 and 6, but it is not equal to 2 or 6"

Answer 21

ohhhh i get it

Answer 22

that's great

Answer 23

Thanks :)

Answer 24

you're welcome

Answer 25

But wait how would you graph that?

Answer 26

step 1) draw a number line

step 2) plot an open circle at x = 2 on the number line

step 3) plot an open circle at x = 6 on the number line

step 4) shade in between the open circles on the number line

Answer 27

Oh yeah. Thanks alot!