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> a与2a的和为()A.3aB.5aC.3aD.5a-数学
a与2a的和为()A.3aB.5aC.3aD.5a-数学
题目简介
a与2a的和为()A.3aB.5aC.3aD.5a-数学
题目详情
a
与2
a
的和为( )
A.3
a
B.5
a
C.3a
D.5a
题型:单选题
难度:偏易
来源:不详
答案
a
+2
a
=(1+2)
a
=3
a
,故选A.
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计算的值为A.B.C.D.-八年级数学
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题目简介
a与2a的和为()A.3aB.5aC.3aD.5a-数学
题目详情
答案