The recent killing of three people with ties to the U.S.consulate in Juarez,Mexico, and the shooting death of a popular rancher on his property in Arizona, are increasing the anger over drug-related violence on both sides of the U.S.-Mexican border.

VOA: standard.2010.04.21

Let's multiply both sides by 2, I'll get 2q1* is equal to a - c over b - q1*.

等式两边同时乘以2,得到,2q1*=/b-q1

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