<PRE><B>Question 1098184</B>
let x represent the number.


7x + 11 = 81
subtract 11 from both sides of this equaton to get 7x + 11 = 11 = 81 - 11
combine like terms to get 7x = 70
divide both sides of this equation by 7 to get 7x/7 = 70/7
simplify to get x = 10


10 is your number.


7 * 10 + 11 = 70 + 11 = 81


</PRE>