a) x< -5 => x ∈ (-∞,-5)
b) x≤ -10 => x∈ (-∞,-10]
c) -x<1 => x> -1 => x∈ (-1,∞)
d) -x≥ -4 => x≤ 4 => x∈ (-∞,4]
e) x>6 => x∈(6,∞)
h) 5x≤ 4+6 => 5x≤ 10=> x≤ 2 => x∈ (-∞, 2]
f) 3x> -3 => x> -1 => x∈ (-1,∞)
g) 2x>6-8 => 2x> -2 => x> -1 => x∈ (-1,∞)
i) -4x≥ -12 => x≤ 3 => x∈(-∞ 3]