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4x-3x=5+3
x=8
5x+2=7-3x+5
5x+3x=7+5-2
2x=14 I:2
x=7
3(x-1)=0
3x-3=0
3x=0+3 I:3
x=1
0,2x+0,3=-0,5
0,2x=-0,5-0,3
0,2x=-0,2 I *5
x=-1
0,4+0,25x=-2
0,25x=-2-0,4
0,25x=-2,4 I*4
x=-9,6
x/5-3=x+1/5 I*5
x-15=5x=1
x-5x=1+15
-4x=16 I:(-4)
x=-4
2x+3/5+2=-x/3-x I*15
3(2x+3+2)=-5(x-x)
6x+9+6=-5x+5x
5x=-9-6
5x=-15 I:5
x=-3