cuarta tarea de sandra isabel de jesus luna "1 6" t matutino

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
x=247368

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

77/21 = 4x
3.6=4x
3.4 / 4=x
x=0.9

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
x=3.5

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
x=8.5

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
x=0.45

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

144+10/15= 154/10
10.2x= 2002
x=2002/-10.2
x= -198.2

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
x=0.55

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

tercera tarea de sandra isabel de jesus luna tur. matutino "1" "6"

IDENTIDADES
1)-25x+157-18=-3x+25-67
-25x+139=-33x-42
-25x=-33x-42-139
-25x=-33x-181
-25x+33x=-181
8x=-181
x=-181/8
x=22.6

2)(2)(-4)(5)+(-2)(3)(8)+16x=145
(-8)(5)+(-2)(3)(8)+16x=145
-40-6(8)+16x=145
-40-48+16x=145
-88+16x=145
16x=1456+88
16x=233
X=233/16
x=14.5

4)29/7)(134)-45+29=15x-(34/6)
(4.14)(134)-45+29=15x-5,6
524.76-45+29=15x-5.6
508.76=15x-5.6
-15x=-5.6-508.76
-15x=-514.36
x=-514.36/15
x=34.29

5)256-(425/25)+(156/4)=36x
256-17+39=36x
278=36x
x=7.72

6)(-2)(-3)(-5)(4)+(-6)(-7)(4)-41=67-18x
-120+168-41=67 -18x
-7=67+7
18x=67+7
18x=74
x=74/18
x=-4.1

7)(12/9)+(13/15)-(18/39+222x=475-(1173)
1.3+.2-6+222x=475-2.75
-4.5+222x=472.25
222x=472.25+4.5
x=476.74/222
x=2.14
EXPRECIONES ALGEBRAICAS
8)15x
9)x/25
10)4x-8
11)12/x(3)
12)x=25
13)14+x
14)2x-3/y