tercer tarea de algebra

1._ 25X*157-18=-33X*25-67

2:_(2)(-4)(5)*(-2)(3)(8)*16X=145
16X=145-4º*-48
16X=57/16
X= 3.5
3._((15/4)(16/7)/(33/22)(12/21))X*24-(16/7)=52-(45/5)
(15/4)(16/7) / (33/22)(12/21)X*24-(16/7)=52-(45/5)
(240/28) / (396/ 462) = 110880/11088X124-2.2=52-9
11088/11088X= 64.8
10X= 6.8
X= 6.8/1º
X= 0.68
4._((29/7)(134)-45*29=15X-(34/6)
(4.14)(134)-45*29=15X-5.6
554.76-45*29=15X-5.6
538.76
15X=533.16/15
X= 35.544


5._256-(425/25)*(156/4)=36X
256-17*39=36X
36X= 256- 17*39
36X=278
X=278/36
X=7.72

6.- (-2)(-3)(-5)(4) * (-6)(-7)(4)-41= 67-18X
-120*168-41=67-18X
7X=67-18X
18X= 67-7
18X=60
X=60/18
X= 3.3
7._(12/9)*(13/15)-(18/3)*222X=475-(11/4)
(12/9)*(13/15)-(18/3)*222X=475-11/4
180*117/ 135= (287/135)(18/3)=891-2430/405=-1539/405
-1539/ 405= -3.8 11/4= 2.75
222X=3.8*475-2.75
222X=468.45
X= 468.45/222
X= 2.110

8. QUINCE VECES UN NUMERO = 15*x
9.un numero entre veinticinco= x/25
10.CUATRO VECES UN NUMERO MENOS 8= 3X-8
11. LA DOCEAVA PARTE DE UN NUMERO MULTIPLICDO POR 3=12/X (3)
12·LA DIFERENCIA DE UN NUMERO Y 25 =X
13·LA SUMA DE 14 Y UN NUMERO =14+X
14·EL DOBLE DE UN NUMERO MENOS LA TERCERA PARTE DE OTRO = 2X-3X