CUARTA TAREA 1ª5 ALGEBRA

1.- (2)(-3)(5) + 25X = (147/15)X - 248/43 - 223/105
-30+25x=9.8x-5.76-2.12
25x-9.8x=-5.76-2.12+30
15.2x=22.12
x=22.12/15.2
x=1.45

2.- (45/7)/(198/26) + 28X = 13 + (14/67)(222/111)
(6.42)/(7.61)+28x=13+(0.20)(2)
0.84+28x=13+0.4
28x=13+0.4-0.84
28x=13.4-0.84
28x=12.56
x=12.56/28
x=0.448

3.- 48/5 + (2/3)X = 1657 + 345
9.6+0.66x=1657+345
0.66x=1657+345-9.6
0.66x=2002-9.6
0.66x=1992.4
x=1992.4/0.66
x=3018.78

4.- (2)(-5)(-7)(-8)(9) + 257896 -1247 -5X = 951753 + 456
-5040+257896-1247-5x=951753+456
-5x=951753+456+5040-257896+1247
-5x=952209+5040-257896+1247
-5x=957249-257896+1247
-5x=699353+1247
-5x=700600
x=700600/-5
x=-140120

5.- (5/3)+(4/3) = 2X
1.6+1.3=2x
2.9=2x
x=2.9/2
x=1.45

6.- (6/7)(3/9) + 3X = 4 - (17/5)
(0.85)(0.33)+3x=4-3.4
0.2805+3x=4-3.4
3x=4-3.4-0.2805
3x=0.6-0.2805
3x=0.3195
x=0.3195/3
x=1065

7.- (23/3) + (16/9)X = 23X -12
7.66+1.77x=23x-12
1.77x-23x=-12-7.66
-21.23x=-19.66
x=-19.66/-21.23
x=0.926

8.- 12X - 18 + (23/7) = (145/2) -4X
12x - 18 + 3.28= 72.5 - 4x
12x + 4x=72.5 + 18 - 3.28
16x= 90.5 - 3.28
16x= 87.22
x=87.22/16
x=5.45

9.- ((14/2)(15/9) / (125/25)) = 17/3 + (13/4)X
((7)(1.66)/(5))= 17/3 + 3.25x
(11.62)/(5)= 5.66 + 3.25x
2.324=5.66+3.25x
2.324-5.66=3.25x
-3.336=3.25x
x=-3.336/3.25
x=-1.02

10.- 22 -178 + 33/5 -16X = 147 + (248/16)X
22-178+6.6-16x=147+15.5x
-16x-15.5x=147-22+178-6.6
-31x=125+178-6.6
-31x=303-6.6
-31x=296.4
x=296.4/-31
x=-9.56

11.- 951357 -456258 + (22/16)X = 145X -654852 +123987
951357 -456258 +1.375x=145x-654852 +123987
1.375x-145x=-654852 +123987-951357 +456258
-143.625x=-530865-951357 +456258
-143.625x=-1482222+456258
-143.625x=-1025964
x=-1025964/-143.625
x=7143.3524

TERCER TAREA 1ª5 ALGEBRA T. MAT

I. ESCRIBIR LA ECUACIÓN CORRESPONDIENTE
1.- 73x
2.- x/15
3.- x/16
4.- 22-x
5.- x+34
6.- 7x-5
7.- x/3

II.- RESOLVER LAS SIGUIENTES IDENTIDADES

8.-(23/12)(15/7) - 24X = 64 -11X
(1.91)(2.14)-24x=64-11x
4.08-24x=64-11x
-24x+11x=64-4.08
-13x=59.92
x=59.92/-13
x=-4.60

9) 45 - (28/5) + 33/2 = 16X
45-5.6+16.5=16x
39.4+16.5=16x
55.9=16x
x=55.9/16
x=3.49

10) ((11/3)(45/7)/(26/9)(14/3))X + 25 -18 = 33
((3.6)(6.4)/(2.8)(4.6))x+25-18=33
(23.04)/(12.88)x+25-18=33
1.78x+25-18=33
1.78x=33-25+18
1.78x=26
x=26/1.78
x=14.60

11) 625-34 + (256/4) + 42X = 758 - 16/3
591+64+42x=758-5.3
655+42x=752.7
42x=752.7-655
42x=97.7
x=97.7/42
x=2.32

12) ((28/6)(47/3))X + (-2)(-4)(3) - (-2)(-3)(4)(6) = 16
(4.6)(15.6)x+24-144=16
71.76x=16-24+144
71.76x=136
x=136/71.76
x=1.89

13) ((17/4)(16/2)/(55/4)) + 25 -18 = 44 -33X
(4.25)(8)/(13.75)+25-18 = 44 -33X
(34)/(13.75)+25-18 = 44 -33X
2.47+25-18 = 44 -33X
2.47+25-18-44=-33x
-34.53=-33x
x=-34.53/-33
x=1.04

14) (11/18)- 23 + 2X = -17X + 29 - (13/21)
o.61-23+23+2x=-17x+29-0.619
0.61+2x=-17x+28.38
2x+17x=28.38-0.61
19x=27.77
x=27.77/19
x=1.46

15) 1236 - 458 + 478 -158X = 457 +(-2)(6)(7)(11)
1256-158x=457+(-924)
1256-158x=-467
-158x=-467-1256
-158x=-1723
x=-1723/-158
x=10.90

SEGUNDA TAREA 1ª5 T.MAT ALGEBRA

1.- ((3/5)/(16/9)(-2) + 12(-2) -36 = 2427/40
(27/80)(-2/1)+(-24)-36
(-54/80)+(-60)
(-54/80)+(-60/1)=-54+(-4800)/80=-4854/80=2427/40

((3/5)/(16/9)(2) + 12(2) -36 =-453/40
(27/80)(2/1)+(-24)-36=
(-54/80)+(-12)=
(-54/80)+(12/1)=54+(-960)/80=-906/80=-453/40

2.- 13(-3) - 35 +2/7 -15/8 = -4289/56
-39-35 + 2/7 -15/8 =
-74 +2/7 -15/8 =
2/7 -15/8 = 16 - 105/56= -89/56
-74/1 + -89/56= -4200+(-89)/56= -4289/56

13(3) - 35 +2/7 -15/8 =79/56
39 - 35 + 2/7 - 15/8
4+ 2/7 - 15/8
2/7 -15/8 = 16 - 105/56= -89/56
3/1 + -89/56= 168+(-89)/56= 79/56

3.- 21(-4) -16(-4)-18 +23 -65 +79 -45(-4) = 179
-84+64-18+23-65+79+180
-20-18+23-65+79+180
-38+23-65+79+180
-15-65+79+180
-80+79+180
-1+180
179

21(5) -16(5)-18 +23 -65 +79 -45(5) = -181
105-80-18+23-65+79-225
25-18+23-65+79-225
7+23-65+79-225
30-65+79-225
-35+79-225
44-225
-181

4.- ((9/8)(7/14)/(23/6))-6 +(1/5)-6 -19 = -11444/1280
(63/112)/(23/6)= (378/256)(6/1)=2268/256 + (1/5)(6/1)-19
2268/256 + 6/5= 11340+1536/1280= 12876/1280 - 19/1= 12876-24320/1280=-11444/1280

((9/8)(7/14)/(23/6))3 +(1/5)3 -19 = -17882/1280
(63/112)/(23/6)= (378/256)(3/1)=1134/256 + (1/5)(3/1)-19
1134/256 +3/5= 5670+768/1280=6438/1280 -19/1=6438-24320/120=-17882/1280

5.- (23/4)(65/6) + (2/3)5 -16/5)5 +22 =
1495/24 + (10/3 - 16/5)(5)+22
10/3 - 16/5=50-48/15=(2/15)(5/1)=10/15
1495/24 + 10/15=22425+240/15=22665/15
(22665/15)(5/1)= 113325/15 + 22/1= 113325 + 330/15= 113655/15

(23/4)(65/6) + (2/3)-7 -16/5)-7 +22 = -130773/15
1495/24 + (14/3 - 16/5)(-7)+22
14/3 - 16/5= 70-48/15=(22/15)(-7/1)=-154/15+22
1495+ -154/15= 22425+ (-3696)/15 = (18729/15)(-7/1)+22
(18729/15)(-7/1)= -131103/15 + 22/1= -131103+330/15= -130773/15

Primer Tarea 1ª5 Algebra T. Mat 21/08/2009

1.- R= -10080

2.-R= -1

3.- R=1872

4.-R= 135

5.-R= 0

6.- R= 7608/1485
(12/5)(6/3)= 72/15
(4/9)(8/11)= 32/99
72/15 + 32/99= 7128+480/1485= 7608/1485


7.- R= 32/3
14/3+15/2= 28+46/6= 73/6
73/6 - 6/4 = 292 - 36/24= 256/24= 128/12= 64/6 = 32/3

8.-R= -359/416
(12/5)(15/4)= 128/20
(13/7)(16/9)= 208/63
(128/20)/(208/63)= 11340/4160
(11340/4160)(-5/1)= -56700/4160
-56700/4160 + 1/2= -113400 + 4160/8320= -7180/8320= 3590/4160= -1795/2080= -359/416

9.-R= -13771/6622
(13/22)/(43/15)=195/946
195/946 - 16/7= 1365 - 15136/6622= -13771/6622

10.-R= -907/480(9/8)(8/6)=(72/48)/(25/4)=288/1200)(13/45)(45/2)=585/90288/1200 + 585/90 = 25925+702000/108000= 227925/108000227925/108000 - 16/4= 911700-1728000/432000= -816300/432000= -408150/216000=-204075/108000= -68025/36000= -22675/12000= -4535/2400= -907/480

11.- R=845879/12915
(33/17)(45/12)= 1485/204 + 3/5=7425+615/1025= 8040/1025 - 18/7= 56280-18450=
37830/7175 + 16/9= 340470+114800/64575= 455270/64575 - 25/5=
22761350-1614375/322875=21145975/322875=4229395/64575= 845879/12915

correccion de la tarea 1

1.- (2)5+3(-6)-(2)(4)5= -48
10-18-40
8-40=
-48

7.- ((49)/7)(-6)+2-3+4(5)(-2)= -83
7(-6)+2-3+20(-2)
-42-1-40=
-83

Tarea num 1

1.- (2)5+3(-6)-(2)(4)5= -12
10-18-40
28-40=
-12

2.-((15)/3)+2(18)-6-3-4= 28
15/3 + 36-6-3-4
5+36-6-3-4
41-6-3-4=
28

3.-(-2)(-4)(-5)(-3)(1)(7)= +840


4.-(2)(-5)(11)(-2)(8)(-5)= -8800


5.-2+3-5-6+7+18-39-65= -85


6.-(((5)(3))/3)+2-5(8)-4(-4)= -3
15/3-3(8)+16
5-27+16=
-3

7.- ((49)/7)(-6)+2-3+4(5)(-2)= -84
7(-6)+2-3+20(-2)
-42-1-40=
-84