每日一题

Mathematics>Standard Multiple Choice

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

-3(x+3)-8=6-4x
Which of the following is the solution to the equation shown?

A.x=11
B.x=-11
C.x=23
D.x=-23

答案和解析

答案：C

解析：

Option C is correct. To solve -3(x+3)-8=6-4x, first use the distributive property on the left side of the equation to yield -3x-9-8=6-4x. Combining like terms on both sides of the equation yields -3x-17=6-4x. Finally, isolating x on one side of the equation reveals that x=23.