Question

Решите неравенство 5x + 1 _> 0 и 3x + 7> 5x -3

Answer 1

5 x + 1 ≥ 0

5 x ≥ - 1

x ≥ - 1/5

S] - ∞; - 1,5]

3 x + 7> 5 x - 3

3 x - 5 x> - 3 - 7

- 2 x> - 10

x <5

S] - ∞: 5 [