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2014-11-19T18:44:14+02:00
4x-5<7
4x<7+5
4x<12
x<12:4
x<3
x={2,1,0......-n}
1 5 1
2014-11-19T18:44:24+02:00
4x - 5 < 7 / +5
4x < 12 / :4
x < 12:4
x<3
x ∈{ 0,1,2}
1 5 1