Răspuns :
x = cantitatea de apa
2 /3 · x = 2x /3
2x /3 - 1 /4 · 2x /3 = 75 litri
2x / 3 - 2x / 4 · 3 = 75
2x /3 - x / 6 = 75
( 4x - x ) / 6 = 75
3x =6 · 75 ; 3x = 450 ; x = 450 :3 = 150 litri
2 /3 · x = 2x /3
2x /3 - 1 /4 · 2x /3 = 75 litri
2x / 3 - 2x / 4 · 3 = 75
2x /3 - x / 6 = 75
( 4x - x ) / 6 = 75
3x =6 · 75 ; 3x = 450 ; x = 450 :3 = 150 litri
2x/3-1/4 ·2x/3=75[litri];
⇒2x/3-2x/12=75
⇒8x/12-2x/12=75
⇒6x/12=75
⇒x=12 ·75/6
⇒x=2·75
⇒x=150[de litri-capacitatea vasului];
⇒2x/3-2x/12=75
⇒8x/12-2x/12=75
⇒6x/12=75
⇒x=12 ·75/6
⇒x=2·75
⇒x=150[de litri-capacitatea vasului];