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Worksheets1下 1-2 解二元一次聯立方程式
Total questions: 10
Worksheet time: 10mins
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Worksheets下列哪一個二元一次方程式與x-2y=1有相同的解?
2x-y=-1
0.5x-y=0.5
2x-4y=1
2x=4y-1
若|2x+y-11|+|x-y+2|=0,則下列何者正確?
x= -3
y= 313
x+y= 8
x-y= 2
已知a是b的53倍,而b比a多6,則a+b=?
18
24
27
33
已知x=5、y=-3與x=-4、y=2是ax+by=12的兩組解,則a+b=?
24
-24
84
-84
設x、y為正整數,且x+y=175、xy=43,則x=?
115
75
100
85
若2x-y=3y+2=103x+y,則x+y之值為何?
2
4
6
8
設2x+y=4y-4x=4,則x=?
0
4
1
3
已知x=3、y=-1和x=0、y=-3皆為ax+by=9的解,則a+b=?
1
-1
2
-2
若x=5,則算式ax+b的值為87;若x=20,則其值為12,問x=10時,其值為多少?
62
61
59
58
設x、y為整數,且│2x+y-3│+2│4x+y-5│+3│2x+3y-k│=0,則k=?
5
-5
1
-1
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