Question 864575
{{{-10<-3 + x <= 21}}}



{{{-10 < x-3 <= 21}}}



{{{-10+3 < x-3+3 <= 21+3}}} Add 3 to ALL sides to isolate x.



{{{-7 < x+0 <= 24}}}



{{{-7 < x <= 24}}}