Question

решите неравенство 5*(3х-5)-3*(5х-3)<_4-3х

Answer 1

5 · (3х - 5) - 3 · (5х - 3) ≤ 4 - 3х
15х - 25 - 15х + 9 ≤ 4 - 3х
3х ≤ 4 + 16
3х ≤ 20
х ≤ 20/3
х ≤ 6 2/3
х∈ ( - ∞; 6 2/3]