Odpowiedź :
Odpowiedź:
2/3y - 1/6 = 3
2/3y = 3 + 1/6 /*3/2
y = 3 1/6 * 3/2 = 19/6 * 3/2 = 19/4 = 4 3/4
y/2 + 1/3 = 7/6
1/2y = 7/6 - 1/3 /*2
y = 2(7/6 - 2/6) = 2 * 5/6 = 5/3 = 1 2/3
y/3 + y/2 = 1/6
1/3y + 1/2y = 1/6
2/6y + 3/6y = 1/6
5/6y = 1/6 /*6/5
y = 1/6 * 6/5 = 1/5
y/4 - 3/8 = 1/2
1/4y = 1/2 + 3/8 /*4
y = 4(4/8 + 3/8) = 4 * 7/8 = 7/2 = 3 1/2
3/5 + y/2 = y
1/2y - y = -3/5
-1/2y = -3/5 /*(-2)
y = 6/5 = 1 1/5
Szczegółowe wyjaśnienie: