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1,2(6x-1)=2,3(x+1)
12/10*(6x-1)=23/10*(x+1) |*10
12(6x-1)=23(x+1)
72x-12=23x+23
49x=35
x=35/49
x=5/7
b)0,4x-1/3 = 2x-5/2
2(0,4x-1)=3(2x-5)
0,8x-2=6x-15 |*10
8x-20=60x-150
52x=130
x=130/52
x=5/2