-x ≤ 3 x ≥ -3 |
2y ≥ 1 y ≥ |
|
||||
12 – x ≥ 7 -x ≥ -5 x ≤ 5 |
7 – 3a < -17 -3a < -24 a > 8 |
|
||||
2 – z < 60 -z < 58 z > -58 |
3(2 – x) – 2(3x – 1) > 36 6 – 3x – 6x + 2 > 36 -9x + 8 > 36 -9x > 28 x < |
|
||||
|
|
|
||||
pro
b > 0: 8 + b > 3b 8 > 2b b < 4 b ϵ
(0 ; 4) |
pro
b < 0: 8 + b <
3b 8 <
2b b > 4 b ϵ Ø |
pro
a > 0: 2 < 6a < a a > a ϵ ( ; ∞) |
pro
a < 0: 2 > 6a > a a < a ϵ (-∞ ; ) |
|
||
|
|
|
|
|
||
b ϵ (0 ; 4) |
a
ϵ (-∞ ; ) U ( ; ∞) |
|
||||
c – 7 ≥ 7 c ≥ 14 c
ϵ ‹14 ; ∞) |
x ≤ x – 11 0 ≤ -11 x
ϵ Ø |
|
||||
|
x – 2 + x ≥ -7x -2 ≥ -9x ≤
x x ≥ x ϵ ‹ ; ∞) |
|
||||
pro
(1 – x) >
0, 1 > x: 5 + 2(1 – x) < 3(1 – x) 5 + 2 – 2x < 3 – 3x -2x
+ 3x < 3 – 5 – 2 x < -4 x
ϵ (-∞ ; ) |
pro
(1 – x) < 0, 1 < x: 5 + 2(1 – x) > 3(1 – x) 5 + 2 – 2x > 3 – 3x -2x
+ 3x > 3 – 5 – 2 x > -4 x
ϵ (1 ; ∞) |
|
||||
x
ϵ (-∞ ; ) U (1 ; ∞) |
|
|||||
3(2x + 1) > 8x 6x + 3 > 8x -2x > -3 x < x
ϵ (-∞ ; ) |
x + 2 ≤ 15(5 – x) x + 2 ≤ 75 – 15x 16x ≤ 73 x ≤ x
ϵ (-∞ ; |
|
||||
2(x – 2) – (2 – x) < 24 2x – 4 – 2 + x < 24 3x – 6 < 24 3x < 30 x < 10 x
ϵ (-∞ ;10) |
4(x – 1) – 3(x + 2) ≤ 24 4x – 4 – 3x – 6 ≤ 24 x – 10 ≤ 24 x ≤ 34 x
ϵ (-∞ ; |
|
||||
6 – 3x – 4x – 4 ≤ 24 2 – 7x ≤ 24 -7x ≤ 22 x ≥ c
ϵ ‹ ; ∞) |
|
|
||||
pro x > 0: x + 7 ≥
8x -7x ≥
-7 x ≤
1 x ϵ
(0 ; |
pro x < 0: x + 7 ≤
8x -7x ≤
-7 x ≥
1 x ϵ Ø |
|
||||
x ϵ (0 ; |
|
|||||