Question

4×r+5<9 la nesecito porfa

Answer 1

1 < 9

r= 0;-1;-2; ...

Answer 2

4*r + 5 < 9
4*r < 9 - 5
4*r < 4
r < 4/4
r < 1

C.S.
$< - \infty . \: 1 >$