5w+9 ≥ 3w+7 5w-3w ≥ 7-9 2w ≥ -2 |:2 w ≥ -1 Odp. w∈<-1, ∞) ------------------------------------------------------------------------------------------------- 6p-1 < 3p+8 6p-3p < 8+1 3p < 9 |:3 p < 3 Odp. p∈ (-∞, 3) ------------------------------------------------------------------------------------------------- 2k-3 ≤ 5k+12 2k-5k ≤ 12+3 -3k ≤ 15 |:(-3) k ≥ -5 Odp. k∈<-5, ∞) ------------------------------------------------------------------------------------------------- 2(p-8) > -8+3p 2p-16 > -8+3p 2p-3p > -8+16 -p > 8 |*(-1) p<-8 Odp. p∈(-∞, -8) ------------------------------------------------------------------------------------------------- 4(3y-1) < 2(y+3) 12y-4 < 2y+6 12y-2y < 6+4 10y < 10 |:10 y < 1 Odp. y∈(-∞, 1) ------------------------------------------------------------------------------------------------- 2(3x+7) ≤ 4(-2x+7) 6x+14 ≤ -8x+28 6x+8x ≤ 28-14 14x ≤ 14 |:14 x ≤1 Odp. x∈(-∞, 1>
a). 5w+9 ≥ 3w+7 5w-3w ≥ 7-9 2w ≥ -2 / : 2 w ≥ 1 b). 6p-1 < 3p+8 6p-3p < 8+1 3p < 9 / : 3 p < 3 c). 2k-3 ≤ 5k+12 2k-5k ≤ 12+3 -3k ≤ 15 / :(-3) k ≥ -5 d). 4(3y-1) < 2(y+3) 12y-4 < 2y+6 12y-2y < 6+4 10y < 10 / : 10 y < 1 e). 2(3x+7) ≤ 4(-2x+7) 6x+14 ≤ -8x+28 6x+8x ≤ 28-14 14x ≤ 14 / : 14 x ≤ 1