Answer:
[tex]a=\frac{(c-b)}{2}[/tex]
Step-by-step explanation:
Move the b over to the other side to get the 2a alone.
2a=c-b
Then divide the entire equation by 2 to get a instead of 2a.
[tex]\frac{2a}{2} =\frac{c-b}{2}[/tex]
[tex]a=\frac{(c-b)}{2}[/tex]
