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Week 14 AI 练习卷

Authored by Shiqi Jiang

Mathematics

7th Grade

Used 13+ times

Week 14 AI 练习卷
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18 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

m=2

m=-3

m=±3

m=1

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

已知x=2是关于x的方程3x+a=0的一个解,则a的值是

-6

-3

-4

-5

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

下列方程中,属于一元一次方程的是

3x-y=0

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

下列变形中,正确的是

若3a=b+1,则3a+b=1

若a=b,则2+a=2-b

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

下列说法正确的是

如果ac=bc,那么a=b

如果a=b,那么a+2=b-2

如果a=b,那么ac=bc

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

已知等式3a=2b+5,则下列等式中不一定成立的是

3a-5=2b

3a+1=2b+6

3ac=2bc+5

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

下列等式变形正确的是

若2x+y=5,则y=2x-5

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