agradesco la ayuda
MEJOR RESPUESTA 10 PUNTOS.
c) -6x : 2 = 3
-6x = 6
x = -1
d) (3x-1) + 5 = 7
3x-1 = 2
3x = 3
x = 1
g) 2 = 2(x - 8)
2 = 2x - 16
18 = 2x
9 = x
h) 3x + 3 + x = 8
4x = 5
x = 5/4
k) 5x + 3.(2) = 4(-6+x)
5x + 6 = -24 + 4x
x = - 30
l) 4/5 x + 1/5 = 2x - 3
4/5 x - 2x = -3 -1/5
x(4/5 - 2) = -16/5
-6/5 x = -16/5
-6x = -16
6x = 16
x = 16/6
x= 8/3
Comments
c) -6x : 2 = 3
-6x = 6
x = -1
d) (3x-1) + 5 = 7
3x-1 = 2
3x = 3
x = 1
g) 2 = 2(x - 8)
2 = 2x - 16
18 = 2x
9 = x
h) 3x + 3 + x = 8
4x = 5
x = 5/4
k) 5x + 3.(2) = 4(-6+x)
5x + 6 = -24 + 4x
x = - 30
l) 4/5 x + 1/5 = 2x - 3
4/5 x - 2x = -3 -1/5
x(4/5 - 2) = -16/5
-6/5 x = -16/5
-6x = -16
6x = 16
x = 16/6
x= 8/3