Question

(1,2+×)+(2,4+2×)+(3,6+3×)<9,6
VAROG AJUTATIMA

Answer 1

(1,2+×)+(2,4+2×)+(3,6+3×)<9,63x+2x+x=6x
6x=1,2+2,4+3,6
6x=7,2
x=7,2:6
x=1,2
S={1,2}