Odpowiedź:
1.
1 - 2x + 5/3 = 4
-2x = 4 - 2 2/3 /:(-2)
x = -2 * 1 1/3 = -2 * 4/3 = -8/3 = -3 2/3
2.
2(x - 1)/3 = x + 2/5
2/3x - 2/3 = x + 2/5
2/3x - x = 2/5 + 2/3
-1/3x = 6/15 + 10/15 /*(-3)
x = -3 * 16/15 = -16/5 = -3 1/5
3.
(2x + 3)/2 = (3x + 2)/3 + 5
x + 3/2 = x + 2/3 + 5
x - x = 5 2/3 - 3/2
0 = 5 4/6 - 1 3/6 = 4 1/6
Szczegółowe wyjaśnienie:
