4,6(x-3)≥4,2+x
4,6x-13,8≥4,2+x
4,6x-x≥4,2+13,8
3,6x≥18
x≥5
x∈[5;+∞)
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4,6(x-3)≥4,2+x
4,6x-13,8≥4,2+x
4,6x-x≥4,2+13,8
3,6x≥18
x≥5
x∈[5;+∞)