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Sagot :

A= -14+8-7+3.5+9-3-3.5
  =-6-3,5+6-3,5
  =-7

B= -10 x 4.5-8.3:(-0.1)-18x0.5
  =-45-83-9
  =-137
A = -14 + 8 - 7 + 3,5 + 9 - 3 - 3,5 
= -6 - 7 + 3,5 + 9 - 3 - 3,5 
= -13 + 3,5 + 9 - 3 - 3,5 
= -9,5 + 9 - 3 - 3,5 
= -0,5 - 3 - 3,5 
= -3,5 - 3,5
= -7

B = -10 x 4,5 - 8,3 : (-0.1) - 18 x 0.5
= -45 + 83 - 9
= 38 - 9
= 29

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