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Kamille
Group Title
I need to find x:
(a+x)/(bx)=(4a)/(3b)
Anyone has any ideas?
 2 years ago
 2 years ago
Kamille Group Title
I need to find x: (a+x)/(bx)=(4a)/(3b) Anyone has any ideas?
 2 years ago
 2 years ago

This Question is Closed

Kamille Group TitleBest ResponseYou've already chosen the best response.0
Also, I know that \[b \neq 0 \] and \[b \neq x\]
 2 years ago

Kamille Group TitleBest ResponseYou've already chosen the best response.0
\[(\frac{ a+x }{ bx } )=\frac{ 4a }{ 3b }\]
 2 years ago

kropot72 Group TitleBest ResponseYou've already chosen the best response.1
First multiply both sides by (b  x) to eliminate the fraction of the left hand side. Then multiply both sides of the result by 3b to eliminate the fraction on the right hand side. Can you do that?
 2 years ago

Kamille Group TitleBest ResponseYou've already chosen the best response.0
Well, I get this. If you have time, can you look? (a+x)/(bx)=(4a/3b)*(bx) a+x=4a/3b(bx)*3b 3ba+3bx=4a/bx
 2 years ago

Kamille Group TitleBest ResponseYou've already chosen the best response.0
If you wont understand what I get, i can use "equation" to show.
 2 years ago

kropot72 Group TitleBest ResponseYou've already chosen the best response.1
Multiplying both sides by (b  x) gives: \[\frac{a+x}{bx}\times (bx)=\frac{4a(bx)}{3b}\] \[a+x=\frac{4a(bx)}{3b}\] Now multiplying both sides by 3b gives: \[3b(a+x)=4a(bx)\] Do you follow so far?
 2 years ago

Kamille Group TitleBest ResponseYou've already chosen the best response.0
Well, I understand this. What to do next?
 2 years ago

kropot72 Group TitleBest ResponseYou've already chosen the best response.1
Next multiply out to remove the brackets, then rearrange to get the two terms in x on the left hand side.
 2 years ago

kropot72 Group TitleBest ResponseYou've already chosen the best response.1
Finally you factorise out x and perform a division to get: \[x=\frac{?}{?}\]
 2 years ago

Kamille Group TitleBest ResponseYou've already chosen the best response.0
Oh,thank you very much. 3ba+3bx=4ab4ax 3bx=4ab3ab4ax 3bx+4ax=ab x(3b+4a)=ab x=ab/3b+4a correct?
 2 years ago

kropot72 Group TitleBest ResponseYou've already chosen the best response.1
Good work! Your answer is correct :)
 2 years ago

Kamille Group TitleBest ResponseYou've already chosen the best response.0
Thank you very much:))
 2 years ago

kropot72 Group TitleBest ResponseYou've already chosen the best response.1
You're welcome :)
 2 years ago
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