$$\frac { 7 x - 8 } { 5 } = \frac { 2 x + 5 } { 4 }$$
$x = \frac{19}{6} = 3\frac{1}{6} \approx 3.166666667$
$$4\left(7x-8\right)=5\left(2x+5\right)$$
$$28x-32=5\left(2x+5\right)$$
$$28x-32=10x+25$$
$$28x-32-10x=25$$
$$18x-32=25$$
$$18x=25+32$$
$$18x=57$$
$$x=\frac{57}{18}$$
$$x=\frac{19}{6}$$
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