In Exercises 8590, solve the equation

IMPERIAL CHINA –WORLD CIVILIZATIONS Quin Emperor Era of the Warring States: during Zhou dynasty. Effective central government control became nonexistent. Long period of intra­Chinese struggle. Until 220 BCE. Quin Dynasty: succeeded Zhou rule. Adopted Legalist doctrines. Unified the country with military force and administrative reorganization. The king, Shih Huang­di called First Emperor, ruled all of China for 11years. In 9years, the six largest states surrendered to Quin, and the country became unified. Expanded to north and south. Established Great Wall to keep Mongolian invaders out. Engaged in torture and harsh treatment. Burning of the books: eradicate Confucius philosophy. Shih Huang­di died and his son became his successor. Due to heavy taxation and unrest, the s