what is x? 2/3x+6=27

- anonymous

what is x? 2/3x+6=27

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- anonymous

You can do this on your own. Just remember what I did on the previous equation. try it yourself, you will learn better :)

- anonymous

okay so you subtract 6 from both sides right

- anonymous

correct, then?

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- anonymous

it will be 3*2/3x=21.3 i think

- anonymous

how did you get 21.3?

- anonymous

i mean 21

- anonymous

no wait you multiply 3 in both sides

- anonymous

help me someone

- anonymous

right, you multiply by 3 on both sides, so what happens then?

- anonymous

then you multipy and x=63 right

- anonymous

for future reference when you mean 21 times 3 , write down 21*3, and not 21.3 :)

- anonymous

okay thank you

- anonymous

can u help me with -2(3x-6)=24

- anonymous

no, x is not 63, 2x = 63.

- anonymous

you multiplied by 3 on both sides, but the 2 is still there, remember?

- anonymous

oh yea okay

- anonymous

There are 200 lockers in your school, numbered 1 through 200 consecutively. The lockers are all closed to begin. Student #1 walks down the corridor and opens all the lockers that are numbered with a multiple of 1, thereby all the lockers are opened. Student #2 then walks down the corridor and changes the status (closed lockers are opened; open lockers are closed) of all the lockers that are numbered with a multiple of 2 (note that in the case of Student #2, this only involved closing lockers). Student #3 then walks down the corridor and changed the status of all the lockers that are numbered with a multiple of 3. By the end of this scenario, 200 students will have walked down the corridor, in numerical order, with each student changing the status of those lockers that are numbered with a number that is a multiple of the student’s number.
At that point, which of the lockers are open? More importantly, why are these lockers open?

- anonymous

HELP^^^^

- anonymous

dont i have to divide then in both sides by 2

- anonymous

yes, you have to divide both sides by 2. so your answer is x = 63/2

- anonymous

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- anonymous

so its 31.5

- anonymous

- anonymous

kerianne, please post your question in another thread. I will attend to it there. It will get confusing here.

- anonymous

woaah, just takei it easy man ....

- anonymous

that is right, x =31.5

- anonymous

- anonymous

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- anonymous

okay thank you very much so i really need help with this one because im very confused with this one can u please help

- anonymous

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- anonymous

HEEEEEEEEEEEEEELLLLLLPPPPPPPPPPPPPPPPPPPPP!!!!!!!!!!!!!!!!!!!!!!!!

- anonymous

um im not tryin to be rude bt can u write it somewhere else cuz i ned help tooo

- anonymous

kerianne, all the prime numbered locks are open.

- anonymous

jl;vjl;l'gl;
dg'
tyf

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