preciousokolie20 preciousokolie20 09-11-2021 Mathematics contestada Write an algebraic equation to represent the English sentence. (Let x represent the unknown mumber.) Then solve the equation The sum of eleven and a number is negative nine. Ollr=-9: x=-9/11 Ox+ 11 =-9, x=-20 O 11+x=9,x= 2 O 11-x=-9; r= 20