Answer:
[tex]\frac{A+b}{c}=d[/tex]
Step-by-step explanation:
We basically have to isolate D by itself, so that involves some addition and division to do so.
Our current equation is:
[tex]A = cd-b[/tex]
So first we move [tex]b[/tex] to the other side via addition.
[tex]A +b=cd-b+b[/tex]
[tex]A+b=cd[/tex]
Then we move [tex]c[/tex] to the other side by dividing both sides by it in order to cancel it on the right side.
[tex]\frac{A+b}{c}=\frac{cd}{c}[/tex]
[tex]\frac{A+b}{c}=d[/tex]