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Jonathanlemaire
@Jonathanlemaire
May 2019
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Bonjour, aidez moi svp
Calculer A= -2+x-y pour:
1) x=7/5 et y=-3/4
2)x=-1/4 et y=7/2
svp aider moi merci
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Verified answer
Bonjour,
1) -2+7/5 -(-3/4) =
tout sous dénominateur 20 :
-2+7/5+3/4 =
(-40+28+15)/20 = 3/20
2) -2 -1/4 -7/2 =
(-8-1-14)/4 = -23/4
1 votes
Thanks 0
jonathanlemaire
merci
Mohamed120
A= 1) -2 + 7/5 - (-3/4)= -2 + 7/5 + 3/4 = -40/20 + 28/20 + 15/20 = (-40+28+15)/20=
3/20
A= 2) -2 - 1/4 - 7/2 = -8/4 -1/4 -14/4= (-8-1-14)/4 =
-23/4
2 votes
Thanks 0
jonathanlemaire
merci
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Verified answer
Bonjour,1) -2+7/5 -(-3/4) =
tout sous dénominateur 20 :
-2+7/5+3/4 =
(-40+28+15)/20 = 3/20
2) -2 -1/4 -7/2 =
(-8-1-14)/4 = -23/4
A= 2) -2 - 1/4 - 7/2 = -8/4 -1/4 -14/4= (-8-1-14)/4 = -23/4