Question 389583
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Hi
Divide 64 into two parts 
Let x and (64-x)represent the two parts
Question States***
 (2/3)x - 1/4(64-x)= 28  Multiplying each term by 12 so as all denominators = 1
  8x - 3*64 + 3x = 28*12
          11x = 528
            x = 48 , Other part is 16

CHECKING our Answer
  2/3*48 -1/4*16 = 32 - 4 = 28