lost yet again
-4/5x=3/5

- anonymous

lost yet again
-4/5x=3/5

- katieb

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- anonymous

help

- anonymous

I got -12/25 but this does not work when i plug it in

- lgbasallote

is that \[\huge -\frac 45 x = \frac 35\]

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## More answers

- anonymous

yes, it is how did you type in the fraction?

- lgbasallote

try clicking the equation button by the comment box...you should see the fraction command there

- lgbasallote

anyway if you multiply both sides by 5 what do you get?

- anonymous

ok i see it now thanks

- lgbasallote

welcome

- anonymous

for the -4/5 * 5 =-4 and 3/5*5=3

- lgbasallote

yes dont forget x

- anonymous

x=-4/3

- anonymous

wow I get so lost so quick

- lgbasallote

it's not -4/3

- anonymous

y, what did i do wrong

- lgbasallote

i assume you tried to solve it mentally. that's what you did wrong. do it step by step

- anonymous

ok give me a min

- lgbasallote

sure

- anonymous

do i flip the -4/5 when I isolate the x
like this
-4/5x=3/5
x= 3/5 div -5/4

- lgbasallote

\[\huge -\frac 45 x = \frac 35\]
you start by multiplying both sides by 5

- anonymous

y 5

- anonymous

is it because both of the fraction have 5?

- lgbasallote

you multiply both sides by 5 because x has a denominator of 5

- anonymous

ok so this gets rid of the fractions

- anonymous

right ?

- lgbasallote

yes. so what does the equation look like after?

- anonymous

-4x=3 ?

- lgbasallote

right. so now what would you do?

- anonymous

div both sides by -4

- anonymous

-0.75

- anonymous

x=0.75

- anonymous

-0.75 my bad

- lgbasallote

yes that is right. but you should but it in fraction for

- anonymous

-4/3

- lgbasallote

form*

- lgbasallote

how did you get -4/3? (after i said it wasnt right)

- anonymous

1 1/3 sorry

- anonymous

looked at the wrong part of my paper

- anonymous

1/3

- lgbasallote

....what did you get again after you divided by 5?

- anonymous

-4x=3

- lgbasallote

so what did you after that?

- anonymous

-4x/5=3/5
=>-4x=3*5/5
=>-4x=3
=>x=-3/4

- lgbasallote

what did you do*

- anonymous

-3/4

- anonymous

wow I have been typing it upside down

- lgbasallote

what were you doing to get -4/3?

- anonymous

forgot to div both sides by -4
and because i can not reduce -3/4 that is my answer

- lgbasallote

you need to remember that you divide both sides by the coefficient of x ALWAYS... in this case your coefficient is 4..that's why you divide both sides by 4

- anonymous

because what i do to one side I do to the other

- anonymous

in order to get x alone I div -4x by -4 and I div 3 by -4 also this gives me -3/4

- anonymous

guys this problem is simple -4/5x=3/5 take the -4/5 and divide by 3/5 so you have X= -4/5 divided by 3/5 now flip the 3/5 to 5/3 so that is to change the divide to times so now you have -4/5 times 5/3= ??

- anonymous

-4/3

- anonymous

I am so wrong just looked at it

- lgbasallote

uhhh what?

- lgbasallote

so what's your answer...-3/4 or -4/3?

- anonymous

IDK!!!!!!!!

- anonymous

sorry for yelling

- lgbasallote

lol

- lgbasallote

you have -4x = 3
you said you divide by =4 so what happens if you do that?

- anonymous

the web site wolfram alfa said it is -4/3

- lgbasallote

could you post the URL of that wolframalpha?

- anonymous

http://www.wolframalpha.com/input/?i=-4%2F5x%3D3%2F5
here it is

- anonymous

no need that is right -4/3 that is what I got when I worked the problem out as well.look at my post where I went step by step through this problem.

- anonymous

reduced form is 1and 1/3

- anonymous

nooo

- lgbasallote

you told be the problem was \[\huge -\frac 45 x = \frac 35\]
what you posted in wolframalpha was \[\huge -\frac{4}{5x} = \frac 35\]
see the difference/

- lgbasallote

you told me*

- anonymous

no

- lgbasallote

in the first one, the x is in the numerator. In the second one, the x is in the denominator

- lgbasallote

so which one is it?

- anonymous

what is this again??

- anonymous

the x is off to the side of the side like -4/4(x)

- lgbasallote

then like i said -4/3 is wrong

- lgbasallote

this is how you type it in wolfram http://www.wolframalpha.com/input/?i=-4%2F5+x%3D3%2F5

- lgbasallote

wolfram is very meticulous and choosy so you have to wrie the question properly

- lgbasallote

got it now?

- lgbasallote

@tootie149 are you still there?

- TheViper

\[\huge -\frac 45 x = \frac 35\]
\(\LARGE{-4x=\frac{3\times5}{5}}\)
\(\LARGE{-4x=3}\)
\(\LARGE{x=\frac{3}{-4}}\)

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