1) \(4x = 24 + x\)
\[4x - x = 24\] \[3x = 24\] \[x = 8\]Ответ: \(x = 8\)
2) \(8x - 8 = 20 - 6x\)
\[8x + 6x = 20 + 8\] \[14x = 28\] \[x = 2\]Ответ: \(x = 2\)
3) \(9 - 4x = 3x - 40\)
\[-4x - 3x = -40 - 9\] \[-7x = -49\] \[x = 7\]Ответ: \(x = 7\)
4) \(0,6x - 5,4 = -0,8x + 5,8\)
\[0,6x + 0,8x = 5,8 + 5,4\] \[1,4x = 11,2\] \[x = 8\]Ответ: \(x = 8\)
5) \(4,7 - 1,1x = 0,5x - 3,3\)
\[-1,1x - 0,5x = -3,3 - 4,7\] \[-1,6x = -8\] \[x = 5\]Ответ: \(x = 5\)
6) \(\frac{5}{6}x + 16 = \frac{4}{9}x + 9\)
\[\frac{5}{6}x - \frac{4}{9}x = 9 - 16\] \[\frac{5 \cdot 3}{6 \cdot 3}x - \frac{4 \cdot 2}{9 \cdot 2}x = -7\] \[\frac{15}{18}x - \frac{8}{18}x = -7\] \[\frac{7}{18}x = -7\] \[x = -7 \cdot \frac{18}{7}\] \[x = -18\]Ответ: \(x = -18\)