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Aram Kocharyan · Answer 1 · 2021-04-20T22:36:46+0000

Answer:

x-7>0

Straight answer: x-7

Explanation:

Assuming that the timber is X cm long and 7cm was cut off, there remaining amount is x - 7cm. In order for 7cm to be cut off, the timber must have been > 7cm long => x > 7 => x - 7 > 0

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