1. UsukiDoll

for n... so we need n by itself...

2. anonymous

ok

3. UsukiDoll

alright... so we need to add what number to both sides so we have all numbers to the right

4. UsukiDoll

-np -90 > 30 I want all numbers to the right.. .

5. UsukiDoll

so how do we cancel out the 90 in the left? and have 90 on the right?

6. anonymous

+90

7. UsukiDoll

yup add 90 to both sides -np>30+90 and what's 30+90?

8. anonymous

120

9. UsukiDoll

yup so now we have -np>120 we just need to divide when dividing both sides with a negative sign we need to switch the inequality signs

10. UsukiDoll

now we need just an n by itself... what can we divide to both sides to make that happen?

11. anonymous

divide by p

12. UsukiDoll

yes we divide by p , but remember we want just positive n by itself so we need to divide both sides by -p and since we have a negative sign involved, the inequality sign gets switched.

13. anonymous

oh ok

14. UsukiDoll

-np >120 $n < \frac{120}{-p}$

15. UsukiDoll

though negative signs in the denominator is frowned upon :( so just place it in the numerator/ $n < \frac{-120}{p}$

16. anonymous

ok

17. UsukiDoll

so now we have n by itself... we're done . :)

18. anonymous

thank you :)