Treat it just like it's an equal sign there, except that if you divide or multiply by a negative number on either side of the inequality the inequality "flips" (so < becomes >, and <= becomes >=, and vice versa).
-40 < 5 + 5x
-40-5 < 5x
-45 < 5x (divide by 5 to isolate x; since 5 is not a negative number, the inequality sign stays the same)
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Treat it just like it's an equal sign there, except that if you divide or multiply by a negative number on either side of the inequality the inequality "flips" (so < becomes >, and <= becomes >=, and vice versa).
-40 < 5 + 5x
-40-5 < 5x
-45 < 5x (divide by 5 to isolate x; since 5 is not a negative number, the inequality sign stays the same)
-9 < x (Tah-dah! :D)
-40<5+5x
-5 <-5+ 5x
-------------
-45<5x/5
/5
--------------
-9<x = x>-9
So your answer is x>-9
I hope this help I tried to explain step by step