Respuestas

2012-05-01T11:17:44+02:00

4(3-2x)+4x+6=1-5(1+3x)

12-8x+4x+6=1-5-15x

-8x+4x+15x=-12-6+1-5

11x=-22

x=-22/11

x=-2

 

 

9/4-(x-4)=2(x+3)-1/4

9/4-4(x-4)/4 = 8(x+3)/4-1/4

9-4x+16=8x+24-1

-4x-8x=-9-16+24-1

-12x=-2

x= -2/-12

x= 1/6