Respuesta :
20 is the total so put it on the right side of the equals sign...
? + ? = 20
let x represent the smaller piece.
? + x = 20
now we know the other piece is 4 feet longer. this means...
(4+x) + x = 20
20 is the total so put it on the right side of the equals sign...
? + ? = 20
let x represent the smaller piece.
? + x = 20
now we know the other piece is 4 feet longer. this means...
(4+x) + x = 20