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


Răspuns :

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

5 x ( 3,14 + X ) = 8,71 +  11

5 x ( 3,14 + X ) = 19,71

3,14 + X = 19,71 : 5

3,14 + X = 3, 942

X = 3,942 - 3,14

X = 0,802