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Need some help to solve this equation !

Hi guys, hope you doing well.

I need some help of making b the subject of this equation (assuming that ac − 3a is not equal to 0)

Thanks

Reply 1

user2020user

Original post by junyte

...

It'll help if you expand out the parentheses on the RHS and multiply the whole equality by 3. Collect the terms that include

b

, factorise

b

out, and divide by it's coefficient thereafter.

(edited 9 years ago)

Reply 2

junyte

Thank you Khallil,

Can it be simplified more, my head is just not working today :frown:

Thanks

Reply 3

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Original post by junyte

Thank you Khallil,

Can it be simplified more, my head is just not working today :frown:

Thanks

You can factorize by taking a common factor of 3 out of the numerator and a out of the denominator, but that's pretty much it. That's also where your initial condition comes from (denom cannot be 0)

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Reply 4

junyte

OK, thank you guys for your help !

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