3ra tarea (carmen)

1.--25x+157-18=-33x+25-67
33x-25x=+157-18-25+67

8x=181

x=181/8

x=22.6

2.-(2)(-4)(5)+(-2)(3)(8)+16x=145
-40-48+16x=145

16x=145+40+48

16x=233

x=233/16

x=14.5

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)

(255/18)/(396/462)x+24-2.2=52-9

117810/11088x-21.8=43

10.6x=43+21.8

10.6x=64.8

x=64.8/10.6

x=6.1

4.-((29/7)(134)-45+29=15x-(34/6)
(29/7)(134)-45+29=15x-(34/6)

38886/7-45+29=15x-(34/6)

481.1=9.4x

x=481.1/9.4

x=51.1

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

36x=278

x=278/36

x=7.7

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

-18x=180

x=180/-18

x=-10

7.-(12/9)+(13/15)-(18/3)+222x=475-(11/4)
(4/3)+(13/15)-(18/3)+(11/4)-475=-222x

-222x=(-57/15)+(11/4)=-475

-222x=(-63/60)-475

-222x=-1.05-475

-222x=-476.05

x=-476.05/-222

x=2.14

8)quience veces un numero
15x

9.-un numero entre 25
x/25

10.-cuatro veces un numero menos 8
4x-8

11.-la doceava parte de un numero nultiplicado por 3
3x/12

12.-la diferencia de un numero y 25
25-x

13.-la suma de 14 y un numero
14+x

14.-ol doble de un numero menos la tercera parte de otro
(2)(x)-y/3