Question

Solve for a ab+c=da= b/(c-d)a=(d-c)/ba=b+c/d

Answer 1

`\begin{gathered} ab+c=d \\ \text{Solving for a:} \\ \text{Subtrac c from both sides:} \\ ab+c-c=d-c \\ ab=d-c \\ \text{divide both sides by b:} \\ (ab)/(b)=(d-c)/(b) \\ a=(d-c)/(b) \end{gathered}`