résoudre
a) 6(y+3)- 2(y-1)=0
b)x sur 4 + 11= 2x+3
c)6-x sur 3= 4x+1 sur 2
6(y+3)-2(y-1)=0
6y+18-2y+2=0
4y=-20
y =-5
6 x (y+3)-2(y-1)=0
6 x y+18-2y+2=0
4y =-20
y = -5
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6(y+3)-2(y-1)=0
6y+18-2y+2=0
4y=-20
y =-5
6 x (y+3)-2(y-1)=0
6 x y+18-2y+2=0
4y =-20
y = -5