Question 133750
{{{L = (2C-G) / (2G)}}}


Multiply both sides by 2G:
{{{2GL = 2C-G}}}


Add G to both sides:
{{{2GL+G=2C}}}


Factor the left:
{{{G(2L+1)=2C}}}


Divide by (2L+1):
{{{G=2C/(2L+1)}}}