Get rid of x first -5x then divide the rest
// I AM NOT SURE, IF SOMEONE SEES THIS AND ITS WRONG CORRECT ME DIRECTLY.
hmm.. never heard of properties but take a look at this :D
Answer:
1) f(x)<x+4
f(x)>-x-3
f(x)<5

2)2.5>0+2
2.5<0+3
2.5<0+5

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HOPE IT HELPS
HAVE A GREAT DAY!!
Answer:
You can always ask the tutor they give the correct answer :))