[tex] \dfrac{1}{5} (2x - 10) + 4x = -3 ( \dfrac{1}{5}x + 4) [/tex]
Apply distributive property to distribute 1/3 and -3:
[tex] \dfrac{2}{5} x - 2 + 4x = - \dfrac{3}{5}x - 12[/tex]
Sort all the x to the left and the constants to the right:
[tex]\dfrac{2}{5} x + \dfrac{3}{5}x + 4x = - 12 + 2[/tex]
Simplify:
[tex]5x = -10[/tex]
Divide by 5:
[tex]x = -2[/tex]
[tex]\boxed { \boxed {\text {Answer: x = -2}}}[/tex]