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Solve C = a/a+12 -A

C= CHILD DOSE IN MILLIGRAMS
a = age of child
A = adult dosage in milligrams

User Wertzui
by
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1 Answer

4 votes

Answer:


a= (- 12 (C + A))/(C + A - 1)

Explanation:

Assuming we want to solve:


C=(a)/(a+12)-A

Add A to both sides;


C + A=(a)/(a+12)

Cross multiply;


(C + A)(a + 12) = a

Expand:


a(C + A) + 12 (C + A) = a

Group similar terms:


a(C + A) - a= - 12 (C + A)

Factor:


a((C + A) - 1)= - 12 (C + A)


a= (- 12 (C + A))/(C + A - 1)

User Dolph
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