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5x(3,14+X)-11=8,71Ajutorrrrrrr!!!!!


Răspuns :

5 × (3,14 + x) - 11 = 8,71

5 × (3,14 + x) = 8,71 + 11

5 × (3,14 + x) = 19,71

3,14 + x = 19,71 : 5

3,14 + x = 3,942

x = 3,942 - 3,14

x = 0,802
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