Chapter 5: Algebra... Different "Faces" of Algebra (I)

The total length of 4 roads is (3x - 1) km. What are the possible lengths of the 4 roads in kilometres?

e.g. The length of the 4 roads are: x km, x km, x-7 km, 6 km
Check: x + x + (x - 7) + 6 = 3x - 1

29 comments:

  1. 1/2x, 1/2x, 1/2x, 1.5x - 1

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  2. Another possible lengths are, x km, x/2 km, x/2 km, x-1 km

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  3. The length of the 4 roads are: 5km, 5km, 4km and 3km, saying that x=6km

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  5. The length of the 4 roads are: x km, x km, x-8 km, 7 km
    Check: x + x + (x - 8) + 7 = 3x - 1

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  6. The length of the 4 roads are x km, x+9km , x-10km, x km

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  8. This comment has been removed by the author.

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  9. The length of the 4 roads are 1 1/2x-1 , 1/2x ,1/2x ,1/2x

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  10. x-6, x+1,1/2x + 1 1/2, 1/2x + 2 1/2

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  11. (3x-1)/4 , (3x-1)/4, (3x-1)/4, (3x-1)/4

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  12. [x+x+(x-100000000000000000000)+99999999999999999999]km

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  13. This comment has been removed by the author.

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  14. This comment has been removed by the author.

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