Question 124246
The perimeter of a rectangle is given by {{{P=2L+2W}}}.  You are given that:


{{{W=3x-4}}} and
{{{L=7x+10}}}


All you need do is substitute the expressions for L and W into the formula for the perimeter.  Also, technically speaking, all you can do is find AN expression that represents the perimeter since there are several depending on how much you simplify the expression once you have made the required substitutions.