Question

ce element al multimi (1 2 3 ) este solutie a ecuatiei 2x-4=0 ?

Answer 1

2x-4=0
2x=0+4
2x=4
x=4/2
x=2
Nr.este 2

Answer 2

2x-4=0
2x=0+4
2x=4
x=4/2
x=2
S={2}