aydenme porfis es para hoy
Respuestas a la pregunta
Respuesta:
1) 2(x+1)=2 ...
resolucion :
2x+ 2 = 2
2x= 2-2
2x=0
x= 0/2
x=2
2) 3(x-2)-x=8
resolucion :
3x - 6 - x = 8
3x - x = 6 + 8
2x= 14
x = 14/2
x= 7
3) 4( -x -1 ) +5x - 2 = -2x - x
resolucion:
- 4x - 4 + 5x - 2 = - 2x - x
- 4x -6 +5x = -2x - x
1x - 6 = -2x -x
x - 6 = -3x
x= -3x + 6
x + 3x = 6
4x= 6
x = 6/4(simplifica)
x = 3/2
4) -2(x+1)= -6
resolucion:
-2x + -2= -6
-2x = -2 -6
-2x = -4
-x = -4/-2
-x = -2
5) -2(x-1)=4
resolucion:
-2x + 2 = 4
- 2x = 4 - 2
-2x = 2
x = -2/2
x = -1
6) -2( -x -1) = 5+1
resolucion:
+ 2x +2 = 6
+ 2x = 6-2
+2x = 4
x = 4 / +2
x= +2
7) 3+2 (4+2x) +1 = 20-2 (2-x)
resolucion:
3 + 2(2x+4) + 1 = 20 - 2 (2-x)
3 + 4x + 8 + 1 = 20 - 2 (2-x)
12+ 4x = 20 - 2 (2-x)
4x + 12 = 20 + 2x - 4
4x + 12 = 16 + 2x
4x= 2x + 4
4x - 2x = 4
2x= 4
x= 4/2
x=2
8) -2-x+4 (-2x - 3 ) = -8x + 1
resolucion :
-2 -x -8x -12 = -8x+ 1
-14 -x -8x = -8x + 1
-14 -9x = -8x +1
-9x = -8x + 15
-x = 15
x= -15
9) 6(x-2+3x) = -3(-4x+1-5)
6x-12+18x= 12x + 12
24x - 12 = 12x+12
24x= 12x + 24
24= 24x-12x
24= 12x
24/12=x
2=x
10) 6x = -4 +x +3 +1
resolucion :
6x = 0 + x
6x= x
5x=0
x= 0/5
x=0
11) x+2 (x+1) = 4
resolucion:
x+ 2x +2 = 4
3x + 2 = 4
3x= 4-2
3x=2
x= 2/3
12) 4(x-3) -5 (x+2 ) = 7(3x-1) + 29
resolucion :
4x - 12 - 5 (x+2) = 7(3x-1) +29
4x - 12 - 5x -10 = 7(3x-1) + 29
4x - 22- 5x = 7(3x-1) + 29
-x -22 = 7(3x-1) + 29
-x -22= 21x - 7+ 29
-x -22 = 21x + 22
-x = 21x + 44
-22x = 44
x= 44/-22
x= -2
13) 6x + 2 ( 1+x ) = 3x - 8 +x -2
resolucion :
6x +2 + 2x = 3x - 8 + x - 2
8x + 2 = 3x - 8 + x - 2
8x + 2 = 3x - 10 + x
8x + 2 = 4x - 10
8x= 4x - 12
8x - 4x = 12
4x = -12
x= -12/4
x= -3
14) 3 (4+12x) - 6 (2x+ 3) = 36 +2 (3x+2 )
solucion :
3 ( 12x + 4 ) - 6( 2x + 3) = 36 + 2 ( 3x + 2)
36x + 12 - 6 ( 2x + 3 ) = 36 + 2 ( 3x + 2)
36x 12 - 12x - 18 = 36 + 2 ( 3x + 2 )
36x - 6 - 12x = 36 + 2 ( 3x + 2)
24x - 6 = 36 + 2 ( 3x + 2 )
24x - 6 = 36 + 6x + 4
24x - 6 = 40 + 6x
24x= 6x + 46
24x - 6x = 46
18x = 46
x = 46/18 ( simplifica :3)
x= 23/9
espero que te ayude :3