$$ \begin{aligned} -2(-8x-6)-10(7x+4) &= 0&& \text{simplify left side} \\[1 em]-(-16x-12)-(70x+40) &= 0&& \\[1 em]16x+12-(70x+40) &= 0&& \\[1 em]16x+12-70x-40 &= 0&& \\[1 em]-54x-28 &= 0&& \text{ move the constants to the right } \\[1 em]-54x &= 28&& \text{ divide both sides by $ -54 $ } \\[1 em]x &= -\frac{28}{54}&& \\[1 em]x &= -\frac{14}{27}&& \\[1 em] \end{aligned} $$

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