6. Решите неравенство 5(7 - 2x) + 15 ≤ 6(x - 5).

35 - 10x + 15 ≤ 6x - 30

50 - 10x ≤ 6x - 30

50 + 30 ≤ 6x + 10x

80 ≤ 16x

x ≥ 80 / 16

x ≥ 5