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2014-04-16T20:04:39+03:00
5x-10-3≤9x-18/2   -6x +12   aducem la acelasi numitor
10x-20-6 ≤9x-18 -12x +24
10x-26 ≤-3x+6
10x+3x ≤6+26
13x<32
x≤ 32/13
1 5 1
2014-04-16T20:06:56+03:00
5x-10-3≤(9x-18)/2-6x+12
5x+6x≤(9x-18)/2+12+13
11x-(9x-18)/2≤25 aducem la acelasi numitor
(22x-9x+18)/2≤25
13x≤25·2
x≤50/13