Question

2x+3 x+1
____ - ___ < -1
3 4​

Answer 1

Ответ:

$\frac{2x+3}{3} - \frac{x+1}{4} <-1$

$4(2x+3)-3(x+1)<-12$

$8x+12-3x-3<-12$

$5x+9<-12$

$5x<-12-9$

$5x<-21$

$x<-\frac{21}{5}$

$x<-4\frac{1}{5}$

x ∈ ( -∞, - $\frac{21}{5}$ )