题目

根据短文理解，选择正确答案。The Opening of The Book NookSaturday, October 410 a.m. to 10 p.m. You will not want to miss the opening of your new neighborhood bookstore! Located at 2289 Main Street, the Book Nook is within walking distance of schools and many homes and businesses. Come and check out the Book Nook on Saturday!Activities will include:• Live music by local musicians• One Book-of-the-Month Club membership giveawayWide Selection The Book Nook has three floors with books of all kinds — any kind you could want. If we do not have the book you are looking for, we can 下列方程变形正确的是A.由-2x=3得x=B.由得x+3（x-1）=2（x+3）C.由得D.由-2+3x=4x得4x-3x=-2