Question

решите неравенство 2х-1<9​

Answer 1

Ответ:

2×-1<9

2×<9+1

2×<10

×<5

Answer 2

$\displaystyle \tt 2x-1<9\\\displaystyle \tt 2x<9+1\\\displaystyle \tt 2x<10\\\displaystyle \tt x<10\div2\\\\ \displaystyle \tt \boxed{\displaystyle \tt \bold{x<5}}$

Ответ: $\displaystyle \tt x\in(-\infty; \: 5)$