Question 457727


{{{1<5x+6<9}}}

{{{1<5x+6<9}}}.....you add {{{-6}}} to all which is correct
-6  -6  -6
{{{-5<5x<3}}}........correct

{{{-5/5<5x/5<3/5}}}.........correct

{{{-1<x<3/5}}}......correct   .....

interval:

{{{x}}}|({{{-1}}},{{{3/5}}})