Question

(x+2)/(x+4) = 3/x

When I solved for x, I got x=3 and 4.
Am I correct?

Answer 1

ok but when there is x on denominator what is the first step ,what is the restriction what we need taking for x ?

Answer 2

do you know it ?

Answer 3

so when is a fraction undefined ?

Answer 4

when the denominator = 0?

Answer 5

yes so than what will be the restriction value for x ?

Answer 6

can you calculi it ?

Answer 7

I don't really understand...

Answer 8

you have said that a fraction is undefined when the denominator is equal zero
so there are 3 fractions with 3 denominators with x

so for these denominators dont being equal zero what values not can getting x

how can you calculi these values ?

Answer 9

sorry not 3 just two

Answer 10

ok

what are the denominators of these two fractions ?

Answer 11

x+4 and x

Answer 12

yes

so x+4 and x when will be equal zero ,when x is equal what value ?

Answer 13

-4 and 0?

Answer 14

yes right so these are the restrictions for x

ok ?

Answer 15

Yeah, okay.

Answer 16

so than now

(x+2)/(x+4) = 3/x

because there are two fractions with two different denominators

what you need to do ?

Answer 17

find common denominators?

Answer 18

yes is right but you can solve it by different ,easy style so like ,,cross multiplie"

yes ?

Answer 19

what you will get than ?

Answer 20

Yeah.
x^2 + 2x over 3x-12

Answer 21

(x+2)/(x+4) = 3/x

cross multiplie how you get ,,over" ?

Answer 22

x+2 3
---- = ---
x+4 x

cross multiplie what mean ?

Answer 23

over is the fraction.
(x^2+2x)/(3x-12)

Answer 24

yes i understand it right but not is correct

so what mean cross multiplie when there is


x+2 3
---- = ---
x+4 x


...???

Answer 25

You multiply x+2 and x.
Then you multiply x+4 and 3.
Right?

Answer 26

yes ,please write these here now

Answer 27

x(x+2)=3(x+4)

yes ? than make the calculi

Answer 28

then it would equal
x^2+2x = 3x - 12

Answer 29

not is right

Answer 30

What did I do wrong?

Answer 31

check it step by step term by term

Answer 32

x(x+2)=3(x+4)

x(x+2) = ?

Answer 33

comen i like make you giving where not is right

Answer 34

how you have got on the right side - 12 ?

Answer 35

Distributive property. 3(x-4).
3(x) -3(4).