4x-2=7x-(x+3)+(-x-6)
4x - 2 = 7x - x - 3 -x - 6
4x - 2 = 7x -x -x - 3 - 6 juntamos las x y los numeros
4x - 7x + x +x = - 3 - 6 + 2
-x = - 7
x = 7
8-(3x+3)=x-(2x+1)
8 - 3x - 3 = x - 2x - 1
8 - 3 + 1 = x - 2x + 3x
6 = 2x
6/2 = x
3 = x
2x+[2x-(x-4)]=-[x-(5-x)]
2x+[2x- x+ 4] = -[x- 5 + x]
2x + x + 4 = - x + 5 - x
3x + 4 = - 2x + 5
3x + 2x = 5 - 4
5x = 1
x = 1/5
x-{5+3x-[5x-(6+x)]}=-3
x-{5+3x-[5x- 6 - x]}=-3
x-{5+3x- 4x + 6}=-3
x - 5 - 3x + 4x - 6= -3
2x = - 3 + 5 + 6
2x = 8
x = 8/2
x = 4
-{7x+[-4x+(-2+4x)]-(5x+1)}=0
-{7x+[-4x -2 + 4x ]- 5x- 1} = 0
-{7x -4x -2 + 4x - 5x- 1} = 0
- 7x +4x +2 - 4x + 5x + 1 = 0
- 7x + 4x - 4x + 5x = -1 - 2
- 2x = - 3
x = - 3/-2
x = 3/2
espero que te sirva, salu2!!!!!