SAT课程
17600269130
7*24小时专业老师服务
SAT课程
17600269130
7*24小时专业老师服务
【官方】SAT阅读每日一题附答案和解析(2018年1月18日)
北京sat培训,sat备考资料,sat网课,sat培训机构,sat保分班,sat真题
每日一题练习题目
MathematicsStandard Multiple Choice
Read the following SAT test question and then click on a button to select
your answer.
ax+5=4x-3
In the linear equation shown above, a is a constant. If the equation has no
solution, what is the value of a?
A.1
B.2
C.3
D.4
每日一题答案及解析
答案：D
解析：
Choice D is correct. A linear equation in one variable will have no solution
if the equation reduces to an equation of the form:
ax+b=cx+d,
where a=c and b≠d.
Therefore, if a=4, the equation 4x+5=4x-3 yields 5=-3. This is not true for
any values of x and therefore this value of a results in an equation with no
solutions.
以上就是为大家整理的相关内容，想获取更多干货，请戳易伯华首页~
免费1对1规划学习方法
斯坦福大学毕业
