Алгебра
Английский
Биология
География
Геометрия
История
Русский
Обществознание
Физика
Химия
Информатика
Литература
МатематикаВопрос:
72. Perform the operation: $$ \left( \frac{3}{x-y} + \frac{x}{x-y} \right) $$
Ответ:
Решение:
- Общий знаменатель: Знаменатель $$(x-y)$$ уже общий.
- Сложим числители: $$3 + x$$.
- Итоговый результат: $$ \frac{3+x}{x-y} $$
Ответ: $$ \frac{3+x}{x-y} $$
Похожие
- 53. Simplify the fraction: $$ \frac{x^2 + 4x + 4}{x+2} $$
- 55. Simplify the fraction: $$ \frac{24a^5b^7c^3}{36a^7b^4c^2} $$
- 57. Simplify the fraction: $$ \frac{a^2 - 64}{a+8} $$
- 59. Perform the operation: $$ \frac{3+x}{4} + \frac{3x-7}{4} $$
- 60. Perform the operation: $$ \frac{a+4}{b} + \frac{2a}{b} $$
- 61. Perform the operation: $$ \frac{2a+b}{a-2b} + \frac{a+3b}{2b-a} $$
- 62. Perform the operation: $$ \frac{8t+z}{1-t} - \frac{t-3z}{t-1} $$
- 63. Perform the operation: $$ \frac{2x-1}{y-x} + \frac{x-4}{x-y} $$
- 64. Perform the operation: $$ \frac{a+5}{4x} \cdot \frac{2x}{a+5} $$
- 65. Perform the operation: $$ \frac{a^2 - b^2}{2a^2b} \cdot \frac{4ab}{a+b} $$
- 66. Perform the operation: $$ \frac{2t}{t-z} : \frac{3tz}{t-z} $$
- 54. Simplify the fraction: $$ \frac{9a^2 - 6a + 1}{3a - 1} $$
- 56. Simplify the fraction: $$ \frac{4pq(p-q)}{2p^2(p^2-q^2)} $$
- 58. Simplify the fraction: $$ \frac{121 - x^2}{x - 11} $$
- 70. Perform the operation: $$ (a-b) \cdot \frac{1}{a-b} $$
- 71. Perform the operation: $$ \left( \frac{x+1}{3x-3} \right) \cdot \left( \frac{x-3}{x^2-1} \right) $$
- 73. Perform the operation: $$ \left( \frac{x}{x+2} - \frac{2}{x+2} \right) $$
- 74. Simplify the fraction: $$ \frac{2a^2+a}{3b} $$
- 75. Simplify the fraction: $$ \frac{x^2+2x}{y^2} $$
- 76. Perform the operation: $$ \frac{35}{3-x} $$
- 77. Simplify the fraction: $$ \frac{5x}{x^2} $$
- 78. Perform the operation: $$ x + \frac{1}{x} $$
- 79. Simplify the expression: $$ \frac{\sqrt{x}}{x} $$
- 80. Perform the operation: $$ 5 - \frac{x}{2} $$
- 81. Simplify the expression: $$ \sqrt{x^2} $$
