Răspunsuri

2014-06-25T14:53:54+03:00
N-are cu ma fie 2 de =
primul
11x-2x=21-17 ; 9x=4 ; x=4/9
O fi bine?
mersi
Cu placere!
2014-06-25T15:12:09+03:00
11x=17=2x+21
11x=2x+21=17
13x+21 = 17 /+21
13x =39 / :13
x = 3
1 5 1