TAREA 4 DE ALDEBRA

1)
X=1.505
(5/3)+(4/3) = 2X
2X=(5/3) + (4/3)
2X=1.67 + 1.34
2X=3.01x=
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=
19.34x=
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=
(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=
1425/67503.25
x= 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=-2939.943948/5 + (2/3)
x=
1657 + 345(2/3)
x=
48/5 -1657 -3452/3
x=
-1647.4 -3452/3
x=
-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