Решение уравнений:

1. a) 48x = -16 $$x = \frac{-16}{48} = -\frac{1}{3}$$ Ответ: $$x = -\frac{1}{3}$$
2. b) $$rac{3}{10} = -\frac{2}{5}a$$ $$a = \frac{3}{10} : (-\frac{2}{5})$$ $$a = \frac{3}{10} \cdot (-\frac{5}{2}) = -\frac{3 \cdot 5}{10 \cdot 2} = -\frac{3}{4}$$ Ответ: $$a = -\frac{3}{4}$$
3. c) 13y + 9 = 26y + 35 $$26y - 13y = 9 - 35$$ $$13y = -26$$ $$y = \frac{-26}{13} = -2$$ Ответ: $$y = -2$$
4. d) 2,4x + 7 = -3 + 2,3x $$2,4x - 2,3x = -3 - 7$$ $$0,1x = -10$$ $$x = \frac{-10}{0,1} = -100$$ Ответ: $$x = -100$$
5. e) 9 - (8x - 11) = -12 $$9 - 8x + 11 = -12$$ $$-8x = -12 - 9 - 11$$ $$-8x = -32$$ $$x = \frac{-32}{-8} = 4$$ Ответ: $$x = 4$$
6. f) 4(2x - 5) - x = 3x + 8 $$8x - 20 - x = 3x + 8$$ $$7x - 3x = 8 + 20$$ $$4x = 28$$ $$x = \frac{28}{4} = 7$$ Ответ: $$x = 7$$