Respuestas

2013-12-15T18:53:07+01:00
2y-3=0
2y = 0+3
2y = 3
2y/2 = 3/2
y = 3/2

4x - 8 = 13
4x = 13 + 8
4x = 21
4x/4 = 21/4
x = 21/4

13x - 5 = 4x + 4
13x - 4x = 4 + 5
9x = 9
9x/9 = 9/9
x = 1

12x + 8 - 3x - 5 = 4x + 2 - 5x
12x - 3x - 4x + 5x = 2 - 8 + 5
10x = -1
10x/10 = -1/10
x = -1/10