Question

aflati numarul natural x pentru care :a ) x : 1 = x
b) 2x<6

Answer 1

a) x:1=x
2x=1
x=2
b) 2x<6
x<6:2
x<3

Answer 2

a) x²=1

b) 2x<6
     x<6:2
     x<3
     x∈{ -∞..-2,-1,0,1,2 }