resoudre ses equations 4x=36 3y=-21 18=-4a 4sur5m=2sur 3
Mathématiques
sarah2012
Question
resoudre ses equations
4x=36
3y=-21
18=-4a
4sur5m=2sur 3
2 Réponse
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1. Réponse caro67000
1)4x=36
x= 36/4
x=9
2)3y=-21
y = -21/3
y= -7
3)18=-4a
a = -18/4
a = -9/2
4)4sur5m=2sur 3
4/5 m = 2/3
m = 2/3 * 5/4
m = 1/3 * 5/2
m = 5/6
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2. Réponse duverne
4x=36 => x=36/4 => x=9
3y=-21 => y=-21/3 => y=-7
18=-4a => y=18/-4=a => 9/-2=y