$$8x+ \frac{ 1-4x }{ 8 } =7$$
$x=\frac{11}{12}\approx 0.916666667$
$$64x+1-4x=56$$
$$60x+1=56$$
$$60x=56-1$$
$$60x=55$$
$$x=\frac{55}{60}$$
$$x=\frac{11}{12}$$
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