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How do I solve literal equations? 

Ex. P=2(a+b) solve for b

Sagot :

TaylorBayleyidn
Sounds like rearranging to me:

P=2(a+b) -- expand brackets
P=2a+2b -- subtract 2a
P-2a=2b -- divide by 2

b=(P-2a)/2
Konrad509idn
[tex] P=2(a+b)\\ P=2a+2b\\ 2b=P-2a\\ b=\frac{P-2a}{2}[/tex]
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