Question

rezolvati inecuatia in Z:6(x-3)+10<2(2x+1)

Answer 1

6x-18+10 < 4x+2
6x-8 < 4x+2
6x-4x < 8+2
2x < 10
x < 5
x € (-infinit, 5)

Answer 2

$6(x - 3) + 10 < 2(2x + 1) \\ 6x - 18 + 10 < 4x + 2 \\6x - 8 < 4x + 2 \\ 6x - 4x < 10 \\ 2x < 10 \\ x < 5$

Fiind in Z, obtinem o multime de numere:

x apartine { ...-2;-1;0;1;2;3;4}

(intervalul apare doar in R pt ca intre capete exista o infinitate de numere)