1)1) |10х+1| > 2110x + 1 > 21 or 10x + 1 < -2110x > 20 or 10x < -22x > 2 or x < -2.2
2)|2-6x| < 4-4 < 2-6x < 4-6 < -6x < 21 > x > -1
Решение уравнений:1)|5x + 1| = 65x + 1 = 6 or 5x + 1 = -65x = 5 or 5x = -7x = 1 or x = -7/5
2)|3-7x| = 193 - 7x = 19 or 3 - 7x = -19-7x = 16 or -7x = -22x = -16/7 or x = 22/7
1)
1) |10х+1| > 21
10x + 1 > 21 or 10x + 1 < -21
10x > 20 or 10x < -22
x > 2 or x < -2.2
2)
|2-6x| < 4
-4 < 2-6x < 4
-6 < -6x < 2
1 > x > -1
Решение уравнений:
1)
|5x + 1| = 6
5x + 1 = 6 or 5x + 1 = -6
5x = 5 or 5x = -7
x = 1 or x = -7/5
2)
|3-7x| = 19
3 - 7x = 19 or 3 - 7x = -19
-7x = 16 or -7x = -22
x = -16/7 or x = 22/7