$$-2(4-7)+8(-5+3)/-5+(-8+2)$$
$\frac{16}{5}=3.2$
$$-2\left(-3\right)+\frac{8\left(-5+3\right)}{-5}-8+2$$
$$6+\frac{8\left(-5+3\right)}{-5}-8+2$$
$$6+\frac{8\left(-2\right)}{-5}-8+2$$
$$6+\frac{-16}{-5}-8+2$$
$$6+\frac{16}{5}-8+2$$
$$\frac{30}{5}+\frac{16}{5}-8+2$$
$$\frac{30+16}{5}-8+2$$
$$\frac{46}{5}-8+2$$
$$\frac{46}{5}-\frac{40}{5}+2$$
$$\frac{46-40}{5}+2$$
$$\frac{6}{5}+2$$
$$\frac{6}{5}+\frac{10}{5}$$
$$\frac{6+10}{5}$$
$$\frac{16}{5}$$
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$\frac{2 ^ {4}}{5} = 3\frac{1}{5} = 3.2$
