martes, 22 de septiembre de 2009

CUARTA TAREA
GPO 1-4
1. X=1.505
(5/3)+(4/3) = 2X
2x=(5/3) + (4/3)
2x=1.67 + 1.34
2x= 3.01
x=3.01/2
x=1.505



2.-X=2.5616
(6/7)(3/9) + 3x=4 - (17/5)
3x=4 + 17/5 + (6/7)(3/9)
3x=4 + 3.4 + 18/63
3x=4 + .285
3x=7.4 + 0.285
3x=7.685
x=7.685/3
x=2.5616


3.-X=0.9114
(23/3) + (16/9)x = 23x - 12
23x - 1.78x= 7.34 + 12
23x - 1.78=19.34
21.22x=19.34
x=19.34/21.22
x=0.9114

4.-X=13.7633
12x - 18 + (23/7)=(145/2) - 4x12x + 4x=-18 + (23/7)(145/2)
12x + 4x= -18 + 3335/14
12x + 4x= -18 + 238.2142
12x + 4x= 220.2142
x=220.2142/16
x= 13.7633

5.-X=0.652
(14/2)(5/9) / (125/25)=17/3 + (13/4)x
(13/4)x= (14/2)(5/9) / (125/25)= -17/3
(13/4)x= 70/18 / 125/25= -17/3
13/4x= 1750/2250 - 17/3
13/4x=1425/6750
3.25x= 0.2122
x=0.2122/3.25
x=.0652


6.-X=315.2
22 - 178 + 33/5 - 16x= 147 + (248/16)x
248/16x + 16x= 22 + 178 -35/5 + 147
248/16x + 16x=200 - 35/5 + 147
248/16 + 16x=200 -7 + 147
248/16 + 16x= 193 + 147
248/16 + 16x= 340
24.8x= 340
x=340/24.8
x=315.2

7.-X=-1.7910
(2)(-3)(5)+25x=(147/15)x - 248/15 - 223/105
25x + 147/15= (2)(-3)(5) + 248/43 + 223/105
25x + 147/15= -75 + 5.7674 + 2.1238
25x + 147= -64.2326 + 2.1238
25x + 145/15= -64.2326 + 2.1238
34.677x= -62.1088
x=-62.1088/34.677
x=-1.7910


8.-X=-312.8571
(45/7) / (198/26) + 28x=13 + (14/67)(222/111)
28x= (45/7) / (198/26) + 13 - (14/67) (222/111)
28x= 1170/1386 + 13 -4 -3108
28x= 0.8441 + 13 -4 -310
28x= 13.8441 -9.8441 -310
28x= -9.841 -310= -319 -8441
x= -8760/28
x= -312.8571


9.-X=-2939.9439
48/5 + (2/3)x= 1657 + 345
(2/3)x= 48/5 -1657 -345
2/3x= -1647.4 -345
2/3x= -1992.4
x= -1992.4/0.6777
x= -2939.9439


10.-X=186131.4
(2)(-5)(-7)(-8)(9) + 257896 - 1247 - 5x= 951753 + 456
5x= (2)(-5)(-7)(-8)(9) - 25789 + 1247 + 951753
5x= -10 -70 560 4940 -26036 + 951753
5x= -12096 + 951753
5x= 930657/5
x= 186131.4

lunes, 7 de septiembre de 2009

TERCERA TAREA 1-4
I
1)X=2.89
12x -(5/8) -23 = 11
12x= 11 + 23 + (5/8)
12x= 11 + 23 + 0.63
12x= 34.63
x= 34.63 / 12
x= 2.89


2)X=0.24
((6/6)(4/9)) + 23X - (7/5) = (9/2)
(24/54) + 23x - (7/5)= (9/2)
0.44 + 23x - 1.4= 4.5
23x= 4.5 + 1.4 - 0.44
23x= 5.46
x= 5.46/23
x= 0.24

3)X=19.56
((18/6)/(24/17))x + 25 -18 = 65
(306/102)x + 25 - 18= 65
2.96x + 25 - 18= 65
2.96x= 6 + 18 - 25
2.96x= 58
x= 58 / 2.96
x= 19.56

4)X=-210
(-2)(5)(3) + (-3)(-6)(5) +(1/2)x +4 = 19
-30 + 90 + 0.5x + 4= 19
0.5x= 19 - 4 - 90 - 30
0.5x= -105
x= -105 / 0.5
x= -210

5) X=-0.26
((19/13)(27/6)/(/35/4))+ 22 = 73x
(114/351) / (35/4) + 22= 73x
0.32 / 8.5 + 22= 73x
-19.28= 73x
-19.18 / 73= x
x= -0.26

6) X=10.79
184x -235 -6/5 = 212x -66
184x - 212= 66 + 6/5 + 235
184x - 212= 66 + 1.2 + 235
-28x= 302.2
x= 302.2 / -28
x= 10.79

7)X=-0.29
(44/16)(2) - 15x +33 = 45x -79 + (12/6)
2.75 (2) - 15x + 33= 45x - 79 + 0.75
15 + 45x= 0.75 - 79 + 33 - 2 / (2.75)
60x= -17.18
x= 17.18 / 60
x= -0.29


II
8) La suma de un número y 18
x + 18

9)Un número multiplicado por 5 y disminuido en 4
x (5) - 4

10) La cuarta parte de un Número multiplicado por 17
(x/4) (17)

11) Un tercio de un número
x / 3

12) Un número entre 7
x / 7

13) La cuarta parte de un numero aádido 9
(x/4) + 9

14) La diferencia de 36 y un número
36 - x