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4x-3x-3=5/+3
x=8
c)3(x-1)=0
3x-3=0/+3
3x=3/:3
x=1
d)-6(x+1)=24
-6x-6=24/+6
-6x=30/:(-6)
x=-5
9.a)0,2x+0,3=-0,5/-0,3
0,2x=-0,8/:0,2
x=-0,4
b)0,4+0,25x=-2/-0,4
0,25x=-2,4/:,25
x=-9,6
10.a)½x-4=x-6/-x
-½x-4=-6/+4
-½x=-2/*(-2)
x=-4