Question

PLEASE HELP!
√(3x)-4=6

I know the answer is 300/6. I just need help explaining the steps. I just do it, but have trouble explaining.

Answer 1

36 = 3x-4
40 = 3x
x = 40 /3

Answer 2

so what i didnt get, was even though the 3x was square root, you still divide. I understand you have to simplify.

Answer 3

because 3x is like 3*x, so you do the opposite on the other side of the equation.

Answer 4

sqrt(3x) -4 = 6 ; +4 each side

sqrt(3x) = 10 ; ^2 both sides

3x = 100 ; /3 both sides

x = 100/3

Answer 5

ack... lol

Answer 6

:)

Answer 7

I get too confused on simple mathematics. Im sorry. lol

Answer 8

i don't sure the function is sqrt (3x) or sqrt (3x-4), thats why parentheses are important

Answer 9

It is sqrt(3x) -4

Answer 10

i dont get 300/6 tho...which is the 'right' answer lol

Answer 11

Yeah, I dont know where I got 300/6

Answer 12

probably off a sheet of paper you wadded up and threw in the trash where it belonged? :)

Answer 13

Probably, I might have did 100/3 just typo maybe ? lol.

Answer 14

I really appreciate the help, tremendously.

Answer 15

you know; ive answered over 300 questions and still havent gotten the 1st answering machine badge? ...

Answer 16

:)

Answer 17

How do I give a badge.... i would give it to you if I could lol. This is my first time using this site.

Answer 18

badges are given thru performing certain tasks; not handed out really; medals for good answers can be given by the masses tho ;)

Answer 19

I see, well I wish you the best of luck :) You'll definitely get it in time. I really appreciated the help. Seriously.

Answer 20

brb

Answer 21

you might have to hit f5 to refresh your browser to see any 'good answer' buttons next to our names tho

Answer 22

Why is it, when i try it myself... now i am getting 4/3? I am just trying to do it and get the right answer :/

Answer 23

nevermind, i see. 4+6. Ah. lol

Answer 24

:)

Answer 25

now how would I write this out to double check? would it be....
\[\sqrt{3(100/3)}-4=6 then multiply both sides by 3?\]

Answer 26

please disregard the one-wordness there lol

Answer 27

add 4 to both sides first

Answer 28

then square both sides

Answer 29

i understand the method. I get confused with fractions

Answer 30

ack....

Answer 31

so wait....

Answer 32

3*(100/3) = 100

sqrt(100 = 10)

Answer 33

sqrt(100)=10

10-4 = 6 is true

Answer 34

OOOOO

Answer 35

wow...

Answer 36

Wow... i feel stupid at the moment :/