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    The following are the best restaurants to dine out with your parents in San Francisco.

    Maybeck's

    Marina

    3213 Scott St.

    Telephone(415) 400-8500

    What do you get when you mix amazing foods with a pleasant atmosphere? The perfect place for family dinner. Maybeck's homemade pastas will transport you to the Italian countryside but the fried chicken brings you right back down to earth. It's a great meal in a peaceful setting that everyone will be sure to remember.

    Liholiho Yacht Club

    Nob Hill

    871 Sutter St.

计算：
（1）$\left(5a^2-ab+1\right)-\left(-4a^2+2ab+1\right)$
（2）$x-\frac{1}{2}x-\frac{1}{3}\left(x-9\right)-\frac{1}{6}\left(x-9\right)$