Question
$$-4\cdot(8+d) = -32$$
Answer
$$ d = 0 $$
Explanation
$$ \begin{aligned} -4\cdot(8+d) &= -32&& \text{simplify left side} \\[1 em]-(32+4d) &= -32&& \\[1 em]-32-4d &= -32&& \\[1 em]-4d-32 &= -32&& \text{ move -32 to the right } \\[1 em]-4d &= -32+32&& \\[1 em]-4d &= 0&& \text{ divide both sides by $ -4 $ } \\[1 em]d &= \frac{0}{-4}&& \\[1 em]d &= 0&& \\[1 em] \end{aligned} $$
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