CUARTA TAREA ALGEBRA

ENCONTRAR EL VALOR DE x

1.- (5/3)+(4/3) = 2X

9/3=2x
3=2x
3/2=x
1.5=x


2.- (6/7)(3/9) + 3X = 4 - (17/5)

18/63+3x=4-(17/5)
0.2+3x=4-(17/5)
0.2+3x=4-3.4
3x=4-3.4-0.2
3x=0.4
x=0.4/3
x=0.13


3.- (23/3) + (16/9)X = 23X -12

7.6+1.7x=23x-12
7.6+24.7x=-12
24.7x=-12-7.6
24.7x=-19.6
x=19.6/24.7
x=0.7


4.- 12X - 18 + (23/7) = (145/2) -4X

12x-18+3.2=72.5-4x
16x-18+3.2=72.5
16x=72.5+18-3.2
16x=87.3
x=87.3/16
x=5.45625


5.- ((14/2)(15/9) / (125/25)) = 17/3 + (13/4)X

(210/18)/(125/25))=17/3+3.25x
5250/2250=17/3+3.25x
2.3=5.6+3.25x
2.3-5.6=3.25x
3.3=3.25x
3.3/3.25=x
1.0=x


6.- 22 -178 + 33/5 -16X = 147 + (248/16)X

22-178+6.6-16x=147+15.5x
22-178+6.6-147=15.5x+16
-156+6.6-147=31.5x
-149.4-147=31.5x
296.4=31.5x
296.4/31.5=x
9.40=x


7.- (2)(-3)(5) + 25X = (147/15)X - 248/43 - 223/105

-30+25x=(147/14)x-248/42-223/105
-30+25x=9.8x-5.9-2.1
-30+15.2x=-5.9-2.1
15.2x=5.9-2.1+30
15.2x=22
x=22/15.2
x=1.44737


8.- (45/7)/(198/26) + 28X = 13 + (14/67)(222/111)

1170/1386+28x=13+3108/1437
0.8+28x=13+2.1
28x=13+2.1-0.8
28x=14.3
x=14.3/28
x=0.5


9.- 48/5 + (2/3)X = 1657 + 345

9.6+0.6x=1657+345
0.6x=1657+345-9.6
0.6x=1992.4
x=1992.4/0.6
x=332.06667


10.- (2)(-5)(-7)(-8)(9) + 257896 -1247 -5X = 951753 + 456

-5040+257896-1247-5x=951753+456
5x=951753+456+5040+257896+1247
5x=700600
x=700600/5
x=140120

I. RESOLVER LOS SIGUIENTES EJERCICIOS (Escribir todo el procedimiento) p


II.- ESCRIBIR LA ECUACION CORRESPONDIENTE.



1) 12x-(5/8)-23=11
12x=11+23+(5/8)
12x=34+0.62
12x=34.62
x=34.62/12
x=2.88


2) ((6/6)(4/9)+23x-(7/5)=(9/2)
(1)(0.45)+23x=(4.5)+(1.4)
(0.45+23)x=4.5+1.4
23.45x=5.9
x=5.9/23.45
x=0.25


3) ((18/6) /(24/17))x+25-18=65
(3) /(1.41)x=65+18-25
2.12x=65+18-25
2.12x=83-25
2.12x=58
x=58/2.12
x=27.35


4) (-2)(5)(3)+(-3)(-6)(5)+(1/2)x+4=19
(1/2)x=19-4-(-3)(-6)(5)-(-2)(5)(3)
(1/2)x=15-(-90)-(-30)
(1/2)x=105-(-30)
(1/2)x=135
x=135/0.5
x=270


5) ((19/13)(27/6)/(35/4))+22=73x
((19/13)(27/6)/(35/4)+22=73x
(6.3)(4.5)/(8.75)+22=73x
(28.35/8.75)+22=73x
3.24+22=73x
25.24=x/73
0.345=x
x=0.345


6)184x-235-6/5=212x-66
184x-212x=-66+235+6/5
-28x=169+6/5
-28x=169+1.2
-28x=170.2
x=170.2/-28
x=-6.07


7) (44/16)(2)-15x+33=45x-79+(12/16)
15x+45x=-79-(12/6)-33+(44/16)(2)
60x=-79-(12/6)-33+(44/16)(2)
60x=-79-(12/6)-33+(44/16)(2)
60x=-79-(2)-33+(2.75)(2)
60x=-158-33+(2.75)(2)
60x=-191+(2.75)(2)
60x=-188.25(2)
60x=-376.5
x=-376.5/60
x=-6.275

8) La suma de un número y 18
8) x+18

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

10) La cuarta parte de un Número multiplicado por 17
10) 1/4x(17)

11) Un tercio de un número
11) 1/3x

12) Un número entre 7
12) x/7

13) La cuarta parte de un numero añádido 9
13) 1/4x9

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

1) ((6/14)(2/13) =12/182 =6/91(5/2)) =13/455+2/7= 84+910/3185 = 994/3185

2) 9/7+6/5 =45/42 =15/14-18/12 =180-252/168 =-72/168 =-12/28-1/15 =-180-28/420 = 152/420 =76/210

3)3/9-16/4 =12-144/36 =-132/36 =-33/9+25/1 =33+225/9 =258/9 =86/3

4)25 -16 -48 -76 +65 +82 -45 +12 = -1

9 -39 -115 -50 32 -13 -1

5) (2) (-9)(3)(-8)(7)(-6)(5)(4)(16)(-2) = -11612160

-18 54 -432 3024 -18144 90720 362880 -11612160

6) 11/3+22/8 =88+66/24 =154/24 =77/24-3/4 =308-36/48 =272/48 =136/24

7)((13/6)(33/4) =429/24 =143/8 /(19/16)) =2288/52 =286/19+22/1 =286+418/19 =704/19-18/1 =704-342/19 =362/19

8) 17-13+62-((33/13)(15/3)/3) =65.58
(33/13)( 15/3) =495/393/1 = 495/117 =.42
4 66 65.58

.2 .47 .13
9) (17)(1/15)(-4)(-6)(-2/7)(1/6)(45/6)(-2) =9.9
3.4 -13.6 -81.6 -38.3 4.9 -9.9

10) -15+15-48-65-36+52+89-79+62-69 =74
0 -48 -17 -19 71 160 81 143 74

SEGUNDA TAREA 1 a

SEGUNDA TA 1ª4 T.MAT 28/08/2009
Resolver los siguientes ejercicios

1.- ((6/14)(2/13)/(5/2))+ 2/7 =

2.- 9/7 + 6/5 -18/12 -1/5 =

3.- 3/9 - 16/4 +25 =

4.- 25 - 16 - 48 - 76 + 65 + 82 - 45 + 12 =

5.- (2)(-9)(3)(-8)(7)(-6)(5)(4)(16)(-2) =

6.- 11/3 + 22/8 -3/4 =

7.- ((13/6)(33/4)/(19/16)) + 22 -18 =

8.- 17 - 13 +62 -((33/3)(15/3)/3) =

9.- (17)(1/5)(-4)(-6)(-2/7)(1/6)(45/6)(-2)=

10.- -15 +15 -48 -65 -36 +52 +89 -79 +62 -69 =