新SAT官方Daily Practice每日一题数学计算题

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Read the following SAT test question and then click on a button to select your

answer.

8月SAT数学官方Daily Practice 每日一练，点击

-3(x+3)-8=6-4x

Which of the following is the solution to theequation shown?

A.x=11

B.x=-11

C.x=23

D.x=-23

重点单词：

multiple ['mʌltipl]adj. 许多，多种多样的n. 倍数，并联

property ['prɔpəti]n. 财产，所有物，性质，地产，道具

yield [ji:ld]n. 生产量，投资收益v. 生产，屈服，投降

option ['ɔpʃən]n. 选择权，可选物，优先购买权v. 给予选

solve [sɔlv]v. 解决，解答

equation [i'kweiʃən]n. 相等，方程(式), 等式，均衡

solution [sə'lu:ʃən]n. 解答，解决办法，溶解，溶液

答案：C

解析：

Option C is correct. To solve -3(x+3)-8=6-4x, firstuse the distributive

property on the left side of theequation to yield -3x-9-8=6-4x. Combining

liketerms on both sides of the equation yields -3x-17=6-4x. Finally, isolating x

on one side of the equation reveals that x=23.