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chapter 10 基础

Authored by changhai li

Specialty

7th Grade

Used 4+ times

chapter 10 基础
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20 questions

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1.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

已知x=-1y=-3是关于x,y的二元一次方程2x﹣ay=4的解,则a的值为(  )

﹣1

﹣2

1

2

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

已知x=3,y=-1是方程2x﹣4y=m的解,则m的值是(  )

10

﹣2

﹣10

2

3.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

下列各式中,为二元一次方程的是(  )

4x+3y﹣9=0

2x+y+3z=4

x+4y=6

3x﹣xy+20=0

4.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

下列方程组中,是二元一次方程组的是(  )

2x+y-xy=1

3x-2y=3

3x=y-1

5x-4z=7

x+2yx=5

5x+y=3

2x+y=7

3x+y=9

5.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

下列方程组中,是二元一次方程组的是(  )

x+3y=5

2x-3z=3

Media Image

m+n=5

mn+n=6

Media Image

6.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

下列式子中,是二元一次方程的是(  )

x+y=1

2x﹣1=x

Media Image
Media Image

7.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

下列方程组中是二元一次方程组的是(  )

3x+4y=6

5z-6y=4

x+y=2

x-y=4

Media Image
Media Image

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