Решение заданий

Задание 7

1. $${\frac{a}{6}} + 6 = {\frac{a + 36}{6}}$$
2. $${\frac{9x}{b}} + 2 = {\frac{9x + 2b}{b}}$$
3. $${\frac{h}{5}} + 3k = {\frac{h + 15k}{5}}$$
4. $${\frac{x}{r}} + 9u = {\frac{x + 9ur}{r}}$$
5. $${\frac{3p}{5}} - y = {\frac{3p - 5y}{5}}$$
6. $${\frac{8}{c}} - 24 + 16c = {\frac{8 - 24c + 16c^2}{c}}$$
7. $$-{\frac{2}{g}} + 20 + {\frac{3}{g}} = {\frac{-2 + 20g + 3}{g}} = {\frac{20g + 1}{g}}$$
8. $${\frac{22}{a}} + {\frac{10}{a}} + 4a = {\frac{22 + 10 + 4a^2}{a}} = {\frac{32 + 4a^2}{a}}$$
9. $$c - {\frac{16}{c}} = {\frac{c^2 - 16}{c}}$$
10. $${\frac{10}{g^2}} + 15 - {\frac{31}{g}} = {\frac{10 + 15g^2 - 31g}{g^2}}$$
11. $$9a - {\frac{6m+81a^2}{9a}} = {\frac{81a^2 - 6m - 81a^2}{9a}} = {\frac{-6m}{9a}} = -{\frac{2m}{3a}}$$
12. $$7d - {\frac{3h+49d^2}{7d}} = {\frac{49d^2 - 3h - 49d^2}{7d}} = -{\frac{3h}{7d}}$$

Задание 8

1. $${\frac{u}{6n}} - 2s = {\frac{u - 12ns}{6n}}$$
2. $${\frac{4c}{3}} - 8u = {\frac{4c - 24u}{3}}$$
3. $${\frac{3d}{4}} - 3b = {\frac{3d - 12b}{4}}$$
4. $${\frac{5s}{2n}} + 9m = {\frac{5s + 18mn}{2n}}$$
5. $${\frac{9x}{8y}} - 6d = {\frac{9x - 48dy}{8y}}$$
6. $$16 - {\frac{4}{c}} + 20c = {\frac{16c - 4 + 20c^2}{c}}$$
7. $$15 + 4g - {\frac{25}{g}} = {\frac{15g + 4g^2 - 25}{g}}$$
8. $${\frac{10}{c}} + 30 + 20c = {\frac{10 + 30c + 20c^2}{c}}$$
9. $$4g + 6 - {\frac{4}{g}} = {\frac{4g^2 + 6g - 4}{g}}$$
10. $${\frac{4}{r}} + 3 - {\frac{4}{r}} = 3$$
11. $${\frac{2x+4s}{4y}} = {\frac{2(x+2s)}{4y}} = {\frac{x+2s}{2y}}$$
12. $$m - {\frac{7y+6m^2}{6m}} = {\frac{6m^2 - 7y - 6m^2}{6m}} = -{\frac{7y}{6m}}$$