Bonjour,
Développer:
a. 12x-32
b. -15y-18+6y= -9y-18
c. 21x-35+1= 21x-34
d. -3y-12-8+4y= y-20
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Bonjour,
Développer:
a. 12x-32
b. -15y-18+6y= -9y-18
c. 21x-35+1= 21x-34
d. -3y-12-8+4y= y-20