Odpowiedzi

2010-02-16T16:18:28+01:00
2[2x+3(x-1)+2]+3≤-[4-2(x-1)]+3
2[2x+3x-3+2]+3≤-[4-2x+2]+3
4x+6x-6+4+3≤-4+2x-2+3
4x+6x-2x≤-4-2+3+6-4-3
8x≤-4/:8
x≤-1,5
2010-02-16T16:26:44+01:00
2[2x+3(x-1)+2]+3 ≤ -[4-2(x-1)]+3
2[2x+3x-3+2]+3 ≤ -[4-2x+2]+3
4x+6x-6+4+3 ≤ -4+2x-2+3
10x-2x ≤ -4-2+3+6-3-4
8x ≤ -4 /:8
x ≥ 0,5
2010-02-16T16:31:57+01:00
2(2x + 3x - 3 +2) + 3 ≤ -(4 - 2x + 2) + 3
2 (5x - 1) + 3 ≤ -(6 - 2x) + 3
10x - 2 + 3 ≤ -6 + 2x + 3
10x + 1 ≤ 2x -3
10x - 2x ≤ -3 - 1
8x ≤ -4
x ≤ -⁴₈
x≤ - ¹₄