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as balanças abaixo determine o valor de x a)observando x x x 100g 100g


b) x x x x x 50g x x x 140g 100g 50g​


Resposta :

x x x x _______ 100g 100g

50g 50g 50g 50g ________ 100g 100g

200g ________ 200g

x = 50g