$$ \begin{aligned} -110 &= 13+3(4h-6)&& \text{simplify right side} \\[1 em]-110 &= 13+12h-18&& \\[1 em]-110 &= 12h-5&& \text{ swap the left and right side of the equation } \\[1 em]12h-5 &= -110&& \text{ move -5 to the right } \\[1 em]12h &= -110+5&& \\[1 em]12h &= -105&& \text{ divide both sides by $ 12 $ } \\[1 em]h &= -\frac{105}{12}&& \\[1 em]h &= -\frac{35}{4}&& \\[1 em] \end{aligned} $$

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