Question

Care este rezolvarea: 3- x > 5

Answer 1

$3 - x > 5$

$- x > 5 - 3$

$- x > 2 \: | \times ( - 1)$

$x < - 2$

$x \: \in \: ( - \infty , - 2)$

Answer 2

3-x>5

3-x-3>5-3

-x>5-3

-x>2

-1•(-x)<-1•2

x<-1•2

x<-2

x € (-∞,-2)