利用等式的性质解方程：3x﹣6=﹣31﹣2x．

阅读下列材料

材料一：2010年5月9日，俄罗斯在红场矩形盛大阅兵式，几年世界反法西斯战争胜利60周年。除俄国外，至少有11个国家的元首出息了阅兵式。

材料二：第二次世界大战给世界人民带来了巨大灾难，世界上80%的人口被卷入战争，5000多万人死亡，直接军费开支及物质损失5万多亿美元，数千年的文明成果几乎毁于一旦。

请回答：

    The US is the fourth largest country in the world. It's smaller than Russia and China. Washington DC is its capital. But it is a quiet city.New York is the biggest city in America and it's one of the biggest cities in the world. It is the east of the US and at the south of the Hudson River(哈德逊河).A large part of the city is on Manhattan Island(曼哈顿岛), a big island in the river. New York has a larger population(人口) than Washington DC. In New York, we can see a famous statue, the Statue of Liberty(自由女神像)

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