10x+36-38x-47 how do u add/subtract numbera that dont have a x when te others do

Mr. vasquez determines that the area of a bathroom is in his house is 25 square feet less than one-fifth of the area of the living room if the bathroom measures 35 square feet what is the area of the living room

Answer this 30 points and brainliest!

What properties allow transformation to be used as a problem solving tool