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212解二元一次聯立方程式

Authored by 洪榮忠 新湖國中

Mathematics

7th Grade

Used 24+ times

212解二元一次聯立方程式
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13 questions

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1.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

一般人心算能力可以解方程式的極限,是幾元幾次方程式?

一元一次方程式

二元一次方程式

一元二次方程式

三元一次方程式

2.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

下列各組數中,何者不是二元一次方程式 2x+y=10  的解?

x=-3、y=16

x=1、y=8

x=-2、y=6

x=4、y=2

3.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Media Image

如左圖,此二元一次聯立方程式的解為下列何者?

Media Image
Media Image
Media Image

4.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Media Image

利用代入消去法,消去x項,可得下列何者?

y+2y=12

4y+2y=12

5.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Media Image

利用代入消去法,解此二元一次聯立方程式,可得下列哪一組解?

x=2、y=8

x=8、y=2

x=1、y=4

x=4、y=1

6.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Media Image

利用代入消去法,消去 y 項,可得下列何者?

8x - 2x - 1 = 1

8x - 6x - 1 = 1

8x - 6x +3 = 1

7.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Media Image

利用代入消去法,解此二元一次聯立方程式,可得下列哪一組解?

x= 1、y= 1

x= 3、y=5

x= 2、y=3

x= -1、y= -3

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