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解比例 (1)10:x=9: (2):x=: (3)=
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若x是方程4﹣4x﹣3=29﹣x的解y是方程62y﹣5+20=41﹣2y的解求2﹣3xy+x2﹣[2
根据要求解答下列问题.1根据要求解答下列问题.①方程x2-2x+1=0的解为____________
下列语句中错误的是
方程2x+3=1的解是x=-1
x=-1是方程2x+3=1的解
不等式2x+3>1的解是x=3
x=3是不等式2x+3>1的解
我们学习了利用函数图象求方程的近似解例如把方程2x﹣1=3﹣x的解看成函数y=2x﹣1的图象与函数
下列方程中解为x=2的方程是
3x﹣2=3
﹣x+6=2x
4﹣2(x﹣1)=1
x+1=0
下列说法中错误的是
不等式x<2的正整数解有一个
﹣2是不等式2x﹣1<0的一个解
不等式﹣3x>9的解集是x>﹣3
不等式x<10的整数解有无数个
下列方程求解正确的是
3x=5x-1的解是
2x+3=x-2的解是x=1
3x=-2的解是
的解是x=3
已知关于x的方程ax-3=0的解是x=2则不等式-x≤1-2x的解集是.
x≥-1
x≤-1
x≥
x≤
如图反比例函数y1=和正比例函数y2=nx的图象交于
(﹣1,﹣3)、
两点,则
﹣nx≥0的解集是( )
A.﹣1<x<0B.x<﹣1或0<x<1
x≤1或0<x≤1
﹣1<x<0或x≥1
下列不等式的解集结果正确的是
x+2>6,解集为x>﹣4
2x<﹣10,解集为x>﹣5
x﹣3>0.1,解集为x>3.1
2x<10,解集为x<
解分式方程去分母后所得的方程是
1﹣3(2x+1)=3
1﹣3(2x+1)=3x
1﹣3(2x+1)=9x
1﹣6x+3=9x
解不等式1<x2-3x+1<9-x.
下列方程的解正确的是
x﹣3=1的解是x=﹣2
x﹣2x=6的解是x=﹣4
3x﹣4=
(x﹣3)的解是x=3
﹣
x=2的解是x=﹣
下列方程中解为x=2的方程是
3x-2=3
4-2(x-1)=1
-x+6=2x
我们学习了利用函数图象求方程的近似解例如把方程2x﹣1=3﹣x的解看成函数y=2x﹣1的图象与函数
方程3-2x-5=9的解是
x=-2
x=2
x=
x=1
根据要求解答下列问题1①方程x2-2x+1=0的解为____②方程x2-3x+2=0的解为____③
下列说法中错误的是
不等式x<2的正整数解只有一个
-2是不等式2x-1<0的一个解
不等式-3x>9的解集是x>-3
不等式x<10的整数解有无数个
下列语句中错误的是
方程2x+3=1的解是x=-1
x=-1是方程2x+3=1的解
不等式2x+3>1的解是x=3
x=3是不等式2x+3>1的一个解
下面四个方程中与方程x-1=2的解相同的一个是.
2x=6
x+2=-1
2x+1=3
-3x=9
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图中各数之间存在一定的规律根据规律可以知道a=.
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在下面的图形中是正方体的表面展开图.
三角形的面积一定它的底和高成反比例.判断对错
34=32 0.85=15.
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比较各组数的大小. ﹣0.7﹣0.12 ﹣﹣
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