Respuestas

2012-04-12T03:37:07+02:00

5/2x - 1/4 = 1/4x*3/8

5.2/2.2x - 1.x/4.x = 3/32x

10/4x - x/4x = 3/32x

(10-x)/4x = 3/32x  divides 32 entre 4

(10-x)/x = 3/8x   se van las x

(10-x) = 3/8

80 - 8x = 3

77 = 8x

77/8 = x