Question 233305
The perimeter of a rectangle can be expressed as:
{{{P = 2(L+W)}}} Substitute P = 6x+6, W = x.
{{{6x+6 = 2(L+x)}}} Divide both sides by 2.
{{{3x+3 = L+x}}} Subtract x from both sides.
{{{2x+3 = L}}} or {{{highlight(L = 2x+3)}}}