Find - x+10 less than o

10 < x

Step-by-step explanation:

-x+10 <0

Add x to each side

-x+x+10 < 0+x

10 < x

-x+10<0

X has to be any number less than - 11. If x was - 10, the answer would be wrong because you would get 0<0. We want something less than 0, so you could do:

x=-15

-15+10<0

-5<0

True