
均一教育平台 / 代入消去法與加減消去法複習
Authored by Peggy Peggy
Mathematics
7th Grade
Used 1+ times

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5 questions
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1.
FILL IN THE BLANKS QUESTION
5 mins • 1 pt
利用加減消去法解二元一次聯立方程式,求x、y。
6x−3y=−9⋯①
6x−4y=−6⋯②
(a)
2.
FILL IN THE BLANKS QUESTION
5 mins • 1 pt
利用代入消去法解二元一次聯立方程式,求x、y。
x+2y=8⋯①
y=3⋯②
(a)
3.
FILL IN THE BLANKS QUESTION
5 mins • 1 pt
利用加減消去法解二元一次聯立方程式,求x、y。
3x+2y=4⋯①
3x−2y=8⋯②
(a)
4.
FILL IN THE BLANKS QUESTION
15 mins • 2 pts
利用加減消去法解二元一次聯立方程式,求x、y。
1/4x-2y=-7⋯①
3x+5y=3⋯②
(a)
5.
MULTIPLE SELECT QUESTION
5 mins • 2 pts
下列哪組數次方程式 2x+y=5 的解?
( x , y ) = ( 2 , -1 )
( x , y ) = ( 3 , -1 )
( x , y ) = ( 2 , 1 )
( x , y ) = ( 1 , 3 )
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