Respuestas

2013-11-14T01:30:06+01:00
1)
5(x+1)-3=1+3x
5x + 5 -3 = 1 + 3x
5x + 2 = 3x + 1
2x = -1
x = -1/2
2)
10x-3(x-3)=5X+6
10x - 3x + 9 = 5x + 6
7x - 5x = -3
2x = -3
x = -3/2
3)
8x+14=14
8x = 0
x = 0
4)
p-21=-5p+3
6p =24
p = 4