An equation is simply a number sentence with a variable in the place of an unknown value. A variable is a letter that is substituted in place of the unknown value. It can be any letter you want, although x is most commonly used. To unlock this lesson you must be a Study.com Member.
Midscale, smoke-free hotel near Cedar Rapids Airport 3 floors, 74 rooms and suites-elevator-AAA 2 Diamonds.
Maps currently not available. 1  Courtyard Philadelphia Springfield. 2  Renaissance Philadelphia Airport Hotel. 3  Courtyard Philadelphia Airport.  Fairfield Inn Philadelphia 1  Airport. Residence Inn Philadelphia Airport.  SpringHill Suites Philadelphia Airport/Ridley 1  Park. Philadelphia Airport Marriott.  Courtyard Philadelphia City Avenue.