plissss tolong bantu,kalau yg bantu semoga rezekinya di lancarkan aminn.. kalau bisa semuanya yahh,soalnya bsk dikumpulin

Materi : Program Linear
Bahasan : Pertidaksamaan Linear

Langkah - langkah dan Jawaban :
(1). 4x + 5 ≤ 6x + 2
4x - 6x ≤ 2 - 5
- 2x ≤ - 3
x ≥ 3/2
HP = {x | x ≥ 3/2, x ∈ R}

(2). 5x + 1 ≥ 1 + 7x
5x - 7x ≥ 1 - 1
- 2x ≥ 0
x ≤ 0
HP = {x | x ≤ 0, x ∈ R}

(3). 2x + 3 < 4x - 4
2x - 4x < - 4 - 3
- 2x < - 7
x > 7/2
HP = {x | x > 7/2, x ∈ R}

(4). 3 - x > 1 + 2x
- x - 2x > 1 - 3
- 3x > - 2
x < 2/3
HP = {x | x < 2/3, x ∈ R}

(5). 4 - 2x ≤ x + 3
- x - 2x ≤ 3 - 4
- 3x ≤ - 1
x ≥ 1/3
HP = {x | x ≥ 1/3, x ∈ R}