Đáp án:
g. \(x = - \dfrac{1}{{12}}\)
Giải thích các bước giải:
\(\begin{array}{l}
a.8x + 28 - 9x + 6 = 24\\
\to - x = - 10\\
\to x = 10\\
b.2x = - 17\\
\to x = - \dfrac{{17}}{2}\\
c.3x - 6 + 2x - 12\\
= 5x - 18\\
d.4x = - 12 - 23\\
\to 4x = - 35\\
\to x = - \dfrac{{35}}{4}\\
e.5x - 45 + 15x = 625\\
\to 20x = 670\\
\to x = \dfrac{{67}}{2}\\
g.x - \dfrac{x}{9} = - \dfrac{2}{{27}}\\
\to \dfrac{8}{9}x = - \dfrac{2}{{27}}\\
\to x = - \dfrac{1}{{12}}
\end{array}\)
