And no unknowns have been in close contact with any of the team.
"The Electronic Mind Reader"
John Blaine
So Judd must wait; the other three, being unknowns, disposed of in the order in which they were standing; but Jake must be- "Five!"
"Hawk Carse"
Anthony Gilmore
An algebraic equation with two unknowns, or variables, could be represented as a shape on a coordinate system in which each point is represented by a pair of numbers representing distances from the two axis lines.
"Our Legal Heritage, 4th Ed."
S. A. Reilly