The given equation is:
p = 2i + 2w
To solve for i:
Step 1: Subtract 2w from both sides
p - 2w = 2i + 2w - 2w
p - 2w = 2i
Step 2: Divide both sides by 2
[tex]\begin{gathered} \frac{p-2w}{2}=\frac{2i}{2} \\ \frac{p-2w}{2}=\text{ i} \end{gathered}[/tex]This can then be re-written as:
[tex]i\text{ = }\frac{p-2w}{2}[/tex]