Question

Уравнение .
Уравнение .

Answer 1

Ответ:

Объяснение:

$\dfrac{-0,2(6x+1)}{3,6} =\dfrac{0,5x}{-9} \ \ \ \ \ |\cdot(-10)\\\\\\\dfrac{2(6x+1)}{3,6} =\dfrac{5x}{9} \\\\\\\dfrac{12x+2}{3,6} =\dfrac{5x}{9} \\\\\\9(12x+2)=5x\cdot3,6\\\\108x+18=18x\\\\108x-18x=-18\\\\90x=-18\\\\x=-\dfrac{18}{90} \\\\x=-\dfrac{18}{18\cdot5}\\\\x=-\dfrac{1}{5} \\\\Otvet: x=-0.2$

Answer 2

Ответ:

$\frac{ - 0.2(6x + 1)}{3.6} = \frac{0.5x}{ - 9} \\ \frac{ - \frac{1}{5} \times (6x + 1)}{ \frac{18}{5} } = \frac{ \frac{1}{2}x }{ - 9} \\ \frac{ - \frac{6}{5} x - \frac{1}{5} }{ \frac{18}{5} } = \frac{ \frac{x}{2} }{ - 9} \\ \frac{ - \frac{ - 6x - 1}{5} }{ \frac{18}{5} } = - \frac{ \frac{x}{2} }{9} \\ \frac{ - 6x - 1}{18} = - \frac{x}{18} \\ - 6x - 1 = - x \\ - 6x + x = 1 \\ - 5x = 1 \\ x = - \frac{1}{5} = - 0.2$