answered 10/4/2009 Four Times A Number, Subtracted From Fifteen, Is Twice The Number. Find The Number? 15 - 4a =2a or 15= 6a or a = 15:6 a =2.5
answered question 10/4/2009 When A Number Is Decreased By 30%of Itself,the Result Is 28 What Is The Number? 0.7times x = 28 If you divide each side of the equation by 0.7 you'll get x = 40
