$$\frac{2x+4}{3}-\frac{3x-42}{4}=\frac{4x-24}{5}-\frac{5x-40}{6}$$
$x = \frac{598}{3} = 199\frac{1}{3} \approx 199.333333333$
$$20\left(2x+4\right)-15\left(3x-42\right)=12\left(4x-24\right)-10\left(5x-40\right)$$
$$40x+80-15\left(3x-42\right)=12\left(4x-24\right)-10\left(5x-40\right)$$
$$40x+80-45x+630=12\left(4x-24\right)-10\left(5x-40\right)$$
$$-5x+80+630=12\left(4x-24\right)-10\left(5x-40\right)$$
$$-5x+710=12\left(4x-24\right)-10\left(5x-40\right)$$
$$-5x+710=48x-288-10\left(5x-40\right)$$
$$-5x+710=48x-288-50x+400$$
$$-5x+710=-2x-288+400$$
$$-5x+710=-2x+112$$
$$-5x+710+2x=112$$
$$-3x+710=112$$
$$-3x=112-710$$
$$-3x=-598$$
$$x=\frac{-598}{-3}$$
$$x=\frac{598}{3}$$
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