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-4(2y+1)+y=-8y-4+y= -7y-4
5y-3(y-1)=5y-3y+3= 2y+3
(12x-4):4+1+x=3x-1+1+x= 4x
-3(x-7)-(x+2)=-3x+21-x-2= -4x-19
-(x+2)-3(2x-4)+2(x-1)= -x-2-6x+12+2x-2=-5x+8
5x-2+2x=
5x+2x=2
7x=2/7
x=2/7
-4(2y+1)+y=
-8y-4+y
7y=4/(-7)
y=-4/7
5y-3(y-1)=
5y-3y=-3
2y=-3/2
y=-1½
(12x-4):4+1+x=
3x-1+1+x=
4x=0/4
x=0
-3(x-7)-(x+2)=
-3x+21-x-2=
-4x=-19/(-4)
x=4¾
-(x+2)-3(2x-4)+2(x-1)=
-x-2-6x+12+2x-2
-5x=-8/(-5)
x=1⅜
-4(2y+1)+y= -8y-4+y= -7y-4
5y-3(y-1)= 5y-3y+3=2y+3
(12x-4):4+1+x=3x-1+1+x=4x
-3(x-7)-(x+2)=-3x+21-x-2=-4x+19
-(x+2)-3(2x-4)+2(x-1)=-x-2-6x+12+2x-2=-5x+8
Myślę, że dobrze rozwiązałam ;)