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> 计算239y+6y4-2y1y的正确结果是()A.3yB.2yC.-2yD.-3y-数学
计算239y+6y4-2y1y的正确结果是()A.3yB.2yC.-2yD.-3y-数学
题目简介
计算239y+6y4-2y1y的正确结果是()A.3yB.2yC.-2yD.-3y-数学
题目详情
计算
2
3
9y
+6
y
4
-2y
1
y
的正确结果是( )
A.3
y
B.2
y
C.-2
y
D.-3
y
题型:单选题
难度:偏易
来源:不详
答案
class="stub"2
3
9y
+6
class="stub"y
4
-2y
class="stub"1
y
=
2
y
+3
y
-2
y
=3
y
,故选A.
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题目简介
计算239y+6y4-2y1y的正确结果是()A.3yB.2yC.-2yD.-3y-数学
题目详情
答案
=3