Řeš v ℝ soustavy nerovnic:
\large 3 x-8 \lt x + 6 \lt 2 x + 2
\large K = \left( {5;7} \right)
\large K = \left( {3;7} \right)
\large K = \left( {4;8} \right)
\large K = \left( {4;7} \right)