Question

dau coroana !! urgent!!​

Answer 1

2x-7<1

2x<1+7

2x<8

x<4

x apartine N* (numere naturale fara 0)

rezulta B={1,2,3}

Answer 2

Explicație pas cu pas:

B={ x€N|2x-7<1}

2x-7<1

B={1,2,3,4,5,6,7}