Question

27 : x + 15 : x = 28

Answer 1

27:x+15:x=28 hay (27+15):x=28

x=(27+15):28

x=1,5

Answer 2

27:x+15:x=28<=>(27+15):x=28<=>42:x=28<=>x=42:28=1,5

Answer 3

(27+15):x=28

 42  :x=28

     x=42:28

     x=1,5

Answer 4

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