18/9/09

CUARTA TAREA DE ALGEBRA

1.- ((14/2)(15/7)) / ((256/14)(357/19)) +35x = 753951 + 456852 - 852963


(210/14) / (91392/266) +35x= 753951 + 456852 - 852963


55860/1279488 +35x= 357840


-1223628 + 35x= 357890


-357890 -1223628= -35x


-865788=-35x


-865788/-35=x


247368=x









2.- 5/3 + 14/7 = 4x


77/21 = 4x


3.6=4x


3.4 / 4=xx


0.9= x






3.- 127/4 + 456/4 - 123/4 = 16x + 64/4


508+1824/16= 2332 / 16 - 123/4 =9328-1968/64 =7360/64


7360/64 = 16x + 16


115=32x


115/32= x


3.5= x



4.- (2)(-3)(5) + 25X = (147/15)X - 248/43 - 223/105





30+25x=29.4x -5.7 -2.1


5.7 + 2.1 + 30 = 29.4x -25x


37.8= 4.4x


37.8/4.4=x


8.5=x





5.- (45/7)/(198/26) + 28X = 13 + (14/67)(222/111)





1170/1386 28x = 13 + 3108/7437


0.8 + 28x = 13 + 0.4


-13 -0.4 +0.8 =-28x


-12.6=-28x


-12.6/-28=x


0.45=x



6.- 48/5 + (2/3)X = 1657 + 345

144+10/15= 154/10




10.2x= 2002


x=2002/-10.2


x= -196.2









7.- (2)(-5)(-7)(-8)(9) + 257896 -1247 -5X = 951753 + 456


-5040 + 257896 -1247 -5x= 952209


251609 - 5x= 952209


-5x=952209 - 251609


-5x= 700600


x= 700600/5


x= 140120



8.- 23/3 + (16/7)x = 23x -12


161+48/21= 209/21


9.9x=23x-12


9.9x -23x= 12


-13.1x =12


x=12/13.1


x=0.9

9.- 12x - 18 + (23/7) = 145/24 - 4x



12x - 18 +3.2 = 6.0 - 4x


- 18 +3.2 =6.0 -4x -12x


8.8= -16x


8.8/16=x


0.55=x






10.- (6/7)(3/4) + 3x = 4 -(17/5)



18/28 +3x =4 - 3.4



0.6 +3x = 4 - 3.4



3x= 4.3 + 4 - 0.6



3x=0



x= 0

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