Odpowiedzi

2010-02-25T16:15:59+01:00
1/2x-1.5=3x
1/2x-3x=1.5
-2.5x=1.5
-x=-o.6
x=0.6
2010-02-25T16:17:29+01:00
1/2( x-3 )=3x
½x - 1½ = 3x
½x - 3x = 1½
-2½x = 1½ //: -2½
x = -⅗ = - 0,6
2010-02-25T16:17:44+01:00
1/2( x-3 )=3x
1/2x- 1 1/2= 3x
1/2x -3x=1 1/2
- 2 1/2x= 1 1/2 /:(-2 1/2)
x= 3/2 : (-5/2)
x= 3/2 * (-2/5)
x= -3/5