Odpowiedzi

2009-11-22T12:40:16+01:00
4x+2=2x+12
4x - 2x = 12 - 2
2x = 10
x = 5
2009-11-22T12:40:55+01:00
2009-11-22T12:41:25+01:00
4x+2=2x+12
=
2x+2=12
=
2x=10
=
1x=5