---------------------------------------------------------------------------------------------- Information Given ---------------------------------------------------------------------------------------------- Entree = $4.75 Addition items = $1.25 each
---------------------------------------------------------------------------------------------- Define x ---------------------------------------------------------------------------------------------- Let the number of addition item be x
---------------------------------------------------------------------------------------------- Find x ---------------------------------------------------------------------------------------------- 9.75 = 4.75 + 1.25x
---------------------------------------------------------------------------------------------- Subtract 4.75 from both sides ---------------------------------------------------------------------------------------------- 5 = 1.25x
---------------------------------------------------------------------------------------------- Divide by 1.25 on both sides ---------------------------------------------------------------------------------------------- 4 = x
---------------------------------------------------------------------------------------------- Answer: The customer ordered 4 additional items ----------------------------------------------------------------------------------------------
