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Angel44
@Angel44
April 2019
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Calculer :
a. 7-(-3.5+(5-4x3))
b.5x(-4.7+2)-(-8.1+2)x(-1)
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pan59
Bonjour.
a = 17,5
b = - 7,45
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MrEagle
a. 7-(-3.5+(5-4x3))
= 7 - ( -3,5 + ( 5 - 12 ) )
= 7 - ( -3,5 - 7 )
= 7 + 10,5
= 17,5
b.5x(-4.7+2)-(-8.1+2)x(-1)
= 5 x ( -2,7) - ( -6,1) x (-1)
= -13,5 - 6,1
= -19,6
0 votes
Thanks 0
pan59
Désolé, il fallait -19,6 pour b.
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Lista de comentários
a = 17,5
b = - 7,45
= 7 - ( -3,5 + ( 5 - 12 ) )
= 7 - ( -3,5 - 7 )
= 7 + 10,5
= 17,5
b.5x(-4.7+2)-(-8.1+2)x(-1)
= 5 x ( -2,7) - ( -6,1) x (-1)
= -13,5 - 6,1
= -19,6