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Theo31
@Theo31
April 2019
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Svp de l'aide je n'y arrive pas
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nonotata
7y +5 = 3y +8
7y -3y =8 -5
4y = 3
y = 3/4
a / 4y +5 = 3y +8
4y -3y = 8 -5=
y =3
b / 7y = 3y +4
7y -3y = 4
4y =4
y =4/4
y =1
c / 14y+10 = 6y +16
14y -6y =16-10
8y = 6
y = 6/8
y =3/4
d / 7y -5 = 3y +1
7y -3y = 1 +5
4y = 6
y =6/4
y = 3/2
donc seul l equation c admet la solution de depart
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vigste
7y + 5 = 3y + 8
7y - 3y = 8-5
4y = 3
y= 3/4 = 0.75
Donc on cherche les equation qui ont comme solution 0.75
a) 4y + 5 = 3y +8
4y - 3y = 8-5
1y = 3
y= 3 Donc l'equation 4y +5= 3y +8 n'a pas comme solution
b) 7y = 3y +4
7y-3y = 4
4y = 4
y = 1
c) 14y + 10 = 6y + 16
14y -6y = 16-10
8y = 6
y = 6/8
y= 3/4 = 0.75 L'equation 14y +10 = 6y +16 admet pour solution celle de l'equation 7y +5 = 3y +8
d) 7y -5 = 3y + 1
7y -3y = 5+1
4y = 6
y = 6/4 = 1.5
Voila en esperant d'avoir aider :)
Bonne journée :)
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7y -3y =8 -5
4y = 3
y = 3/4
a / 4y +5 = 3y +8
4y -3y = 8 -5=
y =3
b / 7y = 3y +4
7y -3y = 4
4y =4
y =4/4
y =1
c / 14y+10 = 6y +16
14y -6y =16-10
8y = 6
y = 6/8
y =3/4
d / 7y -5 = 3y +1
7y -3y = 1 +5
4y = 6
y =6/4
y = 3/2
donc seul l equation c admet la solution de depart
7y - 3y = 8-5
4y = 3
y= 3/4 = 0.75
Donc on cherche les equation qui ont comme solution 0.75
a) 4y + 5 = 3y +8
4y - 3y = 8-5
1y = 3
y= 3 Donc l'equation 4y +5= 3y +8 n'a pas comme solution
b) 7y = 3y +4
7y-3y = 4
4y = 4
y = 1
c) 14y + 10 = 6y + 16
14y -6y = 16-10
8y = 6
y = 6/8
y= 3/4 = 0.75 L'equation 14y +10 = 6y +16 admet pour solution celle de l'equation 7y +5 = 3y +8
d) 7y -5 = 3y + 1
7y -3y = 5+1
4y = 6
y = 6/4 = 1.5
Voila en esperant d'avoir aider :)
Bonne journée :)