If doubling a number and adding 20 to the result gives the same answer as multiplying the number by 8 and taking away 4 from the product, the number is	Pick one
A) 2  B) 3  C) 4  D) 6  E) 7

Rationale: solution let the number be x . = then , 2 x + 20 = 8 x – 4 = 6 x = 24 ‹ = › x = 4 . answer c
Answer: C