2a+5c=af+7c How could i re arrange this to make a the subject...Thanks
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Originally Posted by Chez_ 2a+5c=af+7c How could i re arrange this to make a the subject...Thanks $\displaystyle 2a+5c=af+7c$ $\displaystyle 2a-af=7c-5c$ $\displaystyle a(2-f)=2c$ $\displaystyle a=\frac{2c}{2-f}$
Originally Posted by Chez_ 2a+5c=af+7c How could i re arrange this to make a the subject...Thanks $\displaystyle 2a+5c=af+7c$ $\displaystyle \therefore 2a - af = 7c - 5c$ $\displaystyle \therefore a(2-f) = 2c$ $\displaystyle \therefore a=\frac{2c}{(2-f)}$ Factorising is the key to success when you have two of the same variable that needs to be made the subject.
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