$$2 \times -3 \times 4=7x4$$
$x_{4} = -\frac{24}{7} = -3\frac{3}{7} \approx -3.428571429$
$$-6\times 4=7x_{4}$$
$$-24=7x_{4}$$
$$7x_{4}=-24$$
$$x_{4}=\frac{-24}{7}$$
$$x_{4}=-\frac{24}{7}$$
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