二元二次方程组得解法
Authored by 徐亚琼 徐亚琼
Mathematics
8th Grade
Used 7+ times
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5 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
在使用加减消元法来解此方程组时，我们可以将y=x+1代入2式得————
x+x+1=13
x+1=13
x-x+1=13
x+x+1
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
真的
错误的
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
如果用代入法解此方程组，用x来表示y，y=x+1
真的
错误的
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
通常情况下我们可以用代入消元法来解二元二次方程组
真的
错误的
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