Respuestas

  • Usuario de Brainly
2013-05-31T19:02:21+02:00
-4(-3x+5)-2 =8+8(2x-10)
-4-3x+5-2 = 8+16x-80
-1-3x = -72+16x
-1+72 = 16x+3x
71 = 19x
x = 71/19 = 3.74   aprox.
2013-05-31T19:02:50+02:00
Hola 
-4(-3x+5)-2 =8+8(2x-10)
-4.-3.x+-4.5=8+8.2.x-8.10
12x-20=8+16x-80
12x-20=16x-72
72-20=16x-12x
52=4x
52/4=x
13=x

SUERTE!!!!!