A number is four less than two times the other number. If their difference is 21, what is the greater number?  Choose the correct choice from the following options: A) 50 B) 46 C) 31 D) 21 E) 15
A = one number   46 = other number   A = -4 + 246   A - 46 = 21   solve for A by adding 46 to each side   A = 46 + 21   Substitute (46 + 21) for A in A = -4 + 246   (46 + 21) = -4 + 246   add -46 to each side   21 = -4 + 46   add 4 to each side   25 = 46   Since A = 46 + 21 , A = 25 + 21 , A = 46   ANSWER:46
<result>B</result>
A number is four less than two times the other number. If their difference is 21, what is the greater number?