Please solve the system of equations !!

Here, we will use the substitution method for solving the above equations.

it will cost dollar $540

the living room is 3 which means if we divide 325/3 then we get $108

therefore if 1part of the living room cost $108 and 3 costed $325

then total 5part of the room will cost 5*108 which gives $540

believe it or not anna is correct good job anna give me a fist bump there u go gal