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Quick algebra help

Don't know how to do this question... Supposed to make X the subject, and the answer is z/y (y+z) (from the answer booklet)
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Original post by randomperson11
Don't know how to do this question... Supposed to make X the subject, and the answer is z/y (y+z) (from the answer booklet)
Posted from TSR Mobile


What is the question? :smile:
I inserted an image showing the question, is it not there? :/ sorry but I'm using my mobile and the TSR app is quite different...

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Original post by randomperson11
I inserted an image showing the question, is it not there? :/ sorry but I'm using my mobile and the TSR app is quite different...

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We can't see the question
1. add z
2. multiply by xy
3. divide by y(y+z)
:smile:

Spoiler

(edited 8 years ago)


easy multiply everything on that equation by xy
move all terms containing an x onto one side
take out x as a common factor
I don't get how you get zy :/ Ik i'm really rubbish at maths >.<

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Original post by surina16
1. add z
2. multiply by xy
3. divide by y(y+z)
:smile:

Spoiler



THANK YOU, god I feel so dumb at times even when the question is quite easy >.< I was just really confused when I thought that the z minus the other z will cancel out and give a 0 there and yeahhh

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Original post by thefatone
easy multiply everything on that equation by xy
move all terms containing an x onto one side
take out x as a common factor


THANK YOUUU :biggrin:

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