Question

срочно пжпжпжпжпжп сроно очень надо пжпжпжпжжп дам 60 баллов ппжпжпжп 853 и 856 срооооочно

Answer 1

853.

1) $2x = -8\\x = \frac{-8}{2} \\x = -4$

2) $\frac{1}{5} x = 9\\x = 9 * \frac{1}{5} \\x = 45$

3) -3x = $\frac{1}{4}$

$x = \frac{\frac{1}{4} }{\frac{-3}{-1}}\\x = \frac{-1}{-12}$

4) -10x = -5

x = $\frac{-5}{-10}$

x= 0.5

5) $\frac{2}{15} x = 0\\x = \frac{0}{\frac{2}{15}}\\x = 0$

6) $0.1x = -0.18\\x = \frac{-0.18}{0.1} \\x = -1.8$

856

1) $2x - 10 = 0\\2x = 0 + 10\\2x = 10\\x = \frac{10}{2} \\x = 5$       2)$1.4x - 12 = 0.9x + 4\\1.4x -0.9x = 12+4\\0.5x = 16\\x = \frac{16}{0.5} \\x = 32$      3)$3x - 14 = 5x - 16\\3x - 5x = 14 - 16\\-2x = -2\\x = 1$

4)$12 - (5x+10) = -3\\5x + 10 = -3 - 12\\5x = - 3 - 12 - 10\\5x = - 25\\x = -5$ 5)$6 - (8x + 11) = -1\\- 8x - 11 = -1 - 6\\- 8 x = - 1 - 6 + 11\\- 8x = 4\\x = \frac{4}{-8} \\x = -0.5$    6)$(3x-4) - (6-4x) = 4\\(3x - 4) - 6 + 4x = 4\\3x - 4 - 6 + 4 x = 4\\7 x = 4 + 4 + 6\\7 x = 14 \\x = \frac{14}{7} \\x = 2$