Question

(2х+3)/3 – (х+1)/4 < -1.
решить неравенство​

Answer 1

$\frac{(2x + 3)}{3} - \frac{(x + 1)}{4} < - 1 \\ 4(2x + 3) - 3(x + 1) < - 12 \\ 8x + 12 - 3x - 3 < - 12 \\ 5x + 9 < - 12 \\ 5x < - 12 - 9 \\ 5x < - 21 \\ x < - \frac{21}{5} \\ x < - 4.2$