Can

Watering can full of water weighs 10 kg. Half-full can weighs 5.5 kg. How much weigh can?

Result

k =  1 kg

Solution:

k+v = 10
k + v/2 = 5.5

k+v = 10
2k+v = 11

k = 1
v = 9

Calculated by our linear equations calculator.

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