Question

Решите неравенство 1)7x+3<24; 2)|x|>6​

Answer 1

$7x + 3 < 24 \\ 7x < 24 - 3 \\ 7x < 21 \\ x < 3 \\ x∈( - \infty ;3) \\ \\ \\ |x| > 6 \\ .x > 6 \\ . - x > 6 \\ x∈(6. + \infty) \\ x < - 6,x < 0 \\ x∈(6; + \infty ),x∈( - \infty ; - 6) \\ ...x∈( - \infty ; - 6)u(6; + \infty )$