Respuesta :

Answer:

a = [tex]\frac{c+d}{b}[/tex]

Step-by-step explanation:

First, you want to add d on both sides.

ab-d = c

   +d  +d

ab = c+d

Now, divide b on both sides.

ab = c+d

  /b     /b

a = [tex]\frac{c+d}{b}[/tex]

I hope this helps; have a great day c:

(Also, I just realized that I solved only the question that you typed, not the picture...do you need the answer for the question in the picture???)