等量公理之乘
Authored by 行星 小
Mathematics
7th Grade
Used 2+ times
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5 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
若 3x=15， x =？
3
5
12
9
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
若 2x=20，x =？
10
18
40
9
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
若 5x=45， x =？
8
7
40
9
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
若 -2x=14，x =？
16
7
-12
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
若 7x=2，x =？
5
9
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