1) 4 - 2 * (5 - 6a) = 4 - 2 * 5 + 2 * 6a = 4 - 10 + 12a = -6 + 12a;
2) 25 - 100 %;
11 — x;
x = (11 * 100)/25 = 1100/25 = 44.
1) 4 - 2 * (5 - 6a) = 4 - 2 * 5 + 2 * 6a = 4 - 10 + 12a = -6 + 12a;
2) 25 - 100 %;
11 — x;
x = (11 * 100)/25 = 1100/25 = 44.