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5x= 3 |: 5
x=3/5
4x - 1 = 4 - x - 2 || +1 + x
5x = 5 - 2
5x = 3 ||:5
x = 0,6
4x-1=4-x-2
5x=4+1-2
5x=3 \:5
x=0,6