Solve the equation for "c" means isolate "c".
So, follow the steps below to solve the question.
Step 01: subtract a from both sides of the equation.
[tex]\begin{gathered} a+bc-a=4d-a \\ a-a+bc=4d-a \\ bc=4d-a \end{gathered}[/tex]
Step 02: Divide both sides by b.
[tex]\frac{bc}{b}=\frac{4d-a}{b}[/tex]
Since b/b = 1:
[tex]\begin{gathered} 1c=\frac{4d-a}{b} \\ c=\frac{4d-a}{b} \end{gathered}[/tex]
Answer: Option 2.
[tex]c=\frac{4d-a}{b}[/tex]
