Question

rezolvati in Z* inecuatiile :
a)5x+3(mai mare sau egal cu)3x-5
b)-2x+4<0​

Answer 1

Răspuns:

a)5x-3x=-5-3

2x=-8

x=-8:2

x=-4

b)-2x<0-4

-2x<-4 / x(-1)

2x<4

x<4:2

x<2