oblicz :
a) 9=3x+6
b) -x-3=-4
c) 4(x-1)=3(x+1)
9=3x+6
3=3x
x=1
-x-3=-4
1=x
4(x-1)=3(x+1)
4x-4=3x+3
x=7
-x=-1
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9=3x+6
3=3x
x=1
-x-3=-4
1=x
4(x-1)=3(x+1)
4x-4=3x+3
x=7
a) 9=3x+6
3=3x
x=1
b) -x-3=-4
-x=-1
x=1
c) 4(x-1)=3(x+1)
4x-4=3x+3
x=7