bonjour a tous besoin d'aide s'il vous plait
simplifier l'ecriture en fractionant
a).3*x+4*x
b)7*y-2*y
c)1.5*x+2.3*x
d)2x+4x
e)5y-3y
f)3a+1.5a
g7b-2.3b
3*(a+b)
5*(b-3)
(5+c)*4
(7-d)*6
3*x+3*5
4*5+4*y
2*2-2*8
6*8-6*t
MERCIIII bonne fin de journée
simplifier l'ecriture en fractionant
a).3*x+4*x
b)7*y-2*y
c)1.5*x+2.3*x
d)2x+4x
e)5y-3y
f)3a+1.5a
g7b-2.3b
3*(a+b)
5*(b-3)
(5+c)*4
(7-d)*6
3*x+3*5
4*5+4*y
2*2-2*8
6*8-6*t
MERCIIII bonne fin de journée
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a).3*x+4*x = 3x+4x = 7x
b)7*y-2*y = 7y -2y = 5y
c)1.5*x+2.3*x =1.5x+2.3x = 3.8x
d)2x+4x = 6x
e)5y-3y = 2y
f)3a+1.5a = 4.5a
g7b-2.3b = 4.7 b
3*(a+b) = 3a+3b
5*(b-3) =5b -3b
(5+c)*4 = 20 +4c
(7-d)*6 = 42 -6d
3*x+3*5= 3x+15
4*5+4*y = 20 +4y
2*2-2*8 = 4-16 = -12
6*8-6*t = 48 -6t