I04 



Al^GKBRA. 



5-. 

 6. 



7- 

 8. 



9- 



lo. 



II. 



12. 



14. 



15' 



16. 



^7- 

 18. 



19. 

 20. 

 21. 

 22. 



Ujj/+4y=ii5. 

 t xy=^b. 



2x^-\-xy-\- y=2. 



x'-\-sxy-\-y=Si 

 X— xy-\-y'^—2\. 



( x-^y=\/ 5 



W-i-y=7xy\ 

 c x-j/-\-yx=2o 



V X y 4. 



f (x-\-y)xy=2^o 

 \ x^-\-y^=28o. 

 j x'-\-y-\-x-\-y=i8 

 ^ x~—y^-{-x—y=6. 



I (x-\)(y-'])=o. 



j x'-\-y-—i2=x-\-y 

 ] xy-j-8=2(x-{-y) 



j x'—x^-{-y'—y'=84. 

 ) x^+xY-^y'=4g. 



C iox-{-y 



s xy 



(^gfy-x)=iS 



j a(x—y)=rl,(x+y) 



j x^ — xy=2 



x^-{-y'^—x—y=']8 

 xy-{-x-hy=T,o. 



( :r^+y=34 



( 2X^ — 2,xy=22,—2y^. 



( \/ x—\/y=2 



Result, jr=4 or |. 



y. 



2 or —-. 



Result. X' 



V3 



y=± 



¥+iVr:39- 



J/-iV-39. 



Result, x=g or 



ji/=3 or 



Result, x==l=5,or ±3. 



jj/==t3,or ±5. 



Result, -r=4. 



Result, -^=5, or— 3. 

 y=S, or-5. 



