Răspunsuri

2014-05-22T20:41:36+03:00
X-capacitatea vasului

4/7 *x +72= x
4x/7 +72=x aducem la acelasi numitor
4x+504=7x
4x-7x=-504
-3x=-504
3x=504
x=168 l
2 3 2
2014-05-22T20:42:12+03:00
x-capacitatea vasului
4pe7 ori x +72= x
4xpe7 +72=x aducem la acelasi numitor
4x+504=7x
4x-7x=-504
-3x=-504
3x=504
x=168 l

1 5 1