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.
Hilton DFW Lakes Executive Conference Center. The best of Dallas Fort Worth airport hotels located 5 minutes from DFW in Grapevine, Texas, the Hilton DFW Lakes Executive Conference Center boasts 393 guestrooms and 63,000 sq ft of flexible meeting space as a spectacular retreat for work or play.