Question
$$-2\cdot(13+4) = 16$$
Answer
This equation has no solution.
Explanation
$$ \begin{aligned} -2\cdot(13+4) &= 16&& \text{simplify left side} \\[1 em]-2\cdot17 &= 16&& \\[1 em]-34 &= 16&& \\[1 em] \end{aligned} $$
Since the statement $ \color{red}{ -34 = 16 } $ is FALSE, we conclude that the equation has no solution.
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