A rectangular portrait has an area of 42 square feet and a perimeter of 26 feet. What are the dimensions of the portrait?

Question

I just basically need to know how to do the problem not really the answer

Answer 1

I have already answered a similar question today. However, because you asked just for an idea, I can give you a clue. Use 2 variables, x for high and y for width. Than create 2 equations, for area and perimeter. Substitute a variable in the first equation and solve the second one, nothing really fancy.