Empty canister

The canister is filled with oil weight 17 kg. If filled only half weight 9 kg. What weight does my empty canister have?

Result

m =  1 kg

Solution:


m+o=17
m+o/2 = 9

m+o = 17
2m+o = 18

m = 1
o = 16

Calculated by our linear equations calculator.







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To solve this example are needed these knowledge from mathematics:

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