Question

Resuelve estas ecuaciones:

1. 3x+4(x-2)= 4x-5

2. 2-(x+5)= 4×-8

3. 4x-2(3x-7)= 2x-6

4. p-(p+4)= 4(p-1)+2p

5. 8x+2(x-4)= 8x+10

6. -3(y-1)+2y= 4(y-3)

7. 5r-13-6r= 3(r+5)-16

8. 6-(n+3)= 3n+5-2n

9. 8-3(2x-4)=5+3x-4x

10. 4(2x-2)-3(x+7)= -4

11. -2(3w+6)-(4w-3)= 21.

12. -4(3-4x)-2(x-1)= 12x

13. -4(2z-6)= -3(z-4)+z

14. 5(a+3)-a= -(4a-6)+1

15. 3(2x-4)+3(x+1)= 9

16. 5(x-2)-14x=x-5

17. 3[6-(h+2)]-6= 4(-h+7)

18. 2[3x-(4x-6)]= 5(x-6)

19. -z-6z+3= 4-[6-z-(3-2z)]

20. 4{2-[3(c+1)-2(c+1)]}= -2c

Answer 1

3x+4(x-2)= 4x-5
3x+4x-8=4x-5
7x=4x-5+8
7x-4x=3
3x=3
x=3/3
x=1
.......................................
 2-(x+5)= 4x-8 
2-x-5=4x-8
-x-4x=-8-2+5
-5x=-5
x=-5/-5
x=1
.....................................................
 4x-2(3x-7)= 2x-6
4x-6x+14=2x-6
-2x+14=2x-6
-2x-2x=-6-14
-4x=-20
x=-20/-4
x=5
.........................
 p-(p+4)= 4(p-1)+2p
p-p-4=4p-4+2p
-4=6p-4
-4+4=6p
0=6p
0/6=p
0=p
...................................
8x+2(x-4)= 8x+10
8x+2x-8=8x+10
10x-8=8x+10
10x-8x=10+8
2x=18
x=18/2
x=9
.........................
 -3(y-1)+2y= 4(y-3)
-3y+3+2y=4y-12
2y-3y+3=4y-12
-y+3=4y-12
-y-4y=-12-3
-5y=-15
y=-15/-5
y=3
.......................................
 5r-13-6r= 3(r+5)-16
5r-6r-13=3r+15-16
-r-13=3r-1
-r-3r=-1+13
-4r=12
r=12/-4
r= -3
..................................
 6-(n+3)= 3n+5-2n
6-n-3=3n-2n+5
-n+6-3=n+5
-n+3=n+5
-n-n=5-3
-2n=2
n=2/-2
n= -1
.......................................
 8-3(2x-4)=5+3x-4x
8-6x+12=5-x
-6x+12+8=5-x
-6x+20=5-x
-6x+x=5-20
-5x=-15
x=-15/-5
x=3
.........................................
 4(2x-2)-3(x+7)= -4
8x-8-3x-21=-4
8x-3x-21-8=-4
5x-29=-4
5x=-4+29
5x=25
x=25/5
x=5
....................
 -2(3w+6)-(4w-3)= 21
-6w-12-4w+3=21
-6w-4w-12+3=21
-10w-9=21
-10w=21+9
-10w=30
w=30/-10
w= -3
................................................
 -4(3-4x)-2(x-1)= 12x
-12+16x-2x+2=12x
16x-2x+2-12=12x
14x-10=12x
14x-12x=10
2x=10
x=10/2
x=5
.........................................
 -4(2z-6)= -3(z-4)+z
-8z+24=-3z+12+z
-8z+24=z-3z+12
-8z+24=-2z+12
-8z+2z=12-24
-6z=-12
z=-12/-6
z=2
......................................
 5(a+3)-a= -(4a-6)+1
5a+15-a=-4a+6+1
5a-a+15=-4a+7
4a+15=-4a+7
4a+4a=7-15
8a=-8
a=-8/8
a= -1
........................................
 3(2x-4)+3(x+1)= 9
6x-12+3x+3=9
6x+3x+3-12=9
9x-9=9
9x=9+9
9x=18
x=18/9
x=2
................................
 5(x-2)-14x=x-5
5x-10-14x=x-5
5x-14x=x-5+10
-9x=x+5
-9x-x=5
-10x=5
x=5/-10
x= -1/2
......................................................
 3[6-(h+2)]-6= 4(-h+7)
 3[6-h-2]-6= -4h+28
 3[6-2-h]= -4h+28+6
 3[4-h]= -4h+34
12-3h=-4h+34
-3h+4h=34-12
h=22
....................................................
 2[3x-(4x-6)]= 5(x-6)
 2[3x-4x+6]= 5x-30
 2[-x+6]= 5x-30
-2x+12=5x-30
-2x-5x=-30-12
-7x=-42
x=-42/-7
x=6
...........................................................
 -z-6z+3= 4-[6-z-(3-2z)]
-7z+3=4-[6-z-3+2z]
-7z+3=4-[6-3-z+2z]
-7z+3=4-[6-3-z+2z]
-7z+3=4-[3+z]
-7z+3=4-3-z
-7z+3=1-z
-7z+z=1-3
-6z=-2
z=-2/-6
z=1/3
......................................
 4{2-[3(c+1)-2(c+1)]}= -2c
 4{2-[3c+3-2c-2]}= -2c
 4{2-[3c-2c+3-2]}= -2c
 4{2-[c+1]}= -2c
 4{2-c-1}= -2c
 4{1-c}= -2c
4-4c=-2c
-4c+2c=-4
-2c=-4
c=-4/-2
c=2