math

On one side of a scale there is a 1-kg weight and half of a brick. On the other side there is one full brick. The scale is balanced. How many kg does the brick weigh? Try to present at least 2 methods to solving this problem.

How does this problem help to understand equality concept?

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  1. balance:
    1kg+1B=2B
    1kg=(2-1)B so one B is 1kg.

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    bobpursley

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