Question 1014482
You would do best to avoid computations in the steps and instead use a formula and do most of the computations in the final formula.  Study this lesson:


<a href="http://www.algebra.com/my/FIND-RECTANGLE-DIMENSIONS-USING-GIVEN-PERIMETER-AND-AREA.lesson?content_action=show_dev">Find rectangle dimensions using the given perimeter and area</a>