一元一次方程50道练习题(带答案)

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2021年02月24日 02:16
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元一次方程


50


道练 习题(含答案)





1


、【基础题】解方程


:








(1


)


2x


+


1


=< /p>


7


;


(2


)


5x




2


=


8


;



(3


)


3x


+


3


=


2x


+


7


;



(4


)


x


+


5


=


3x


—< /p>


7


;



3


(8


)


x


=


x


+


16


.


(5)


11x


< br>2


=


14x


< br>9


;



(6


)


x



9


=


4x


+


27


;



( 7


)



x


=< /p>




-


x


+


3




4


2


1.1


、【基础题】解方程


:


(1


)


2x


+


6


=


1


;< /p>



(2


)


10 x



3


=


9< /p>


;


(


3


)


5x




2


=


7x


+


8


;


(


4


)


1





x


=


3x


+


-




4x< /p>



2


=


3




x


2x




4


2 1


x



(


5


)




(


6


)




7x


+


2


=




(


7


)




x


=-



-


2


x


5


+


1




(


8


)


2x




3


1



=






2


、【基础题】解方程:




(


1


)


4


(


x


+< /p>


0.5


)+


x


=


7




(


2


)




2 (x



1


)=


4




(


3


)



5( x



1


)



=


1




(4


)


2



(


1



x


)=




(5


)


11x


+


1


=


5(2x

+


1)


;



(6)


4x



3(20



x


)=


3


.


2


2.1


、【基础题】解方程


:



(1


)


5 (x


+


8


)




5


=


0




(2


)


2 (3




x


)=


9




(3


)



3( x


+


3


)=


24




(4)



2( x



2


)=


12




(5)


12(2



3x


)=


4x


+


4




(6)


6



3(x


+ -)=-




3


3


(7)

2(200



15x


)=


70


+


25x




(


8


)


3(2x


+


1)


=


12


.


3


、【综合


I


】解方程

< br>:



(


1


)



x


+


2


=



x


.



(


2


)



3




x


=


x


+


1 1


5





4



2



3


(


3


)


3


-


(


x


+


1


)=


-


(


7


2x




3


)


-



4


(4



)



1




-(x



T


)




(


5


)



2x



1


x


+


2


1


1


3



=



3


4


1




(


6


)




丄(


4


x


+



2



(


x



1


)


=


2



5



-(x


+


1


1


1


1


1


(


7


)


-(x


+


14


)=


-(x


+


20


)




(


8


)


-( x


+


15


)=-



-


(


x



7


)


.


7


4


5


2


3


3.1


、【综合


I


】解方程:



(1)



1


x



_


1




3


_


(


2


)



7x



5


3




(


3


)



2x



1


=


5x


+


1





(


4


)


lx 7


=








4


-





6


8


2



4



2


4





1


2x


8


+


5x




1


1 /






(5)




5


x


-



(


3





=


1





(


6


)



1




2


3


=



1




(7


) -(


2x


+


14


) =



4





2x



6


7





(8)




(


200


+


x


)




2(300




x


)=



300


9




10



10




25





1 / 2




2


- +


3


9x




6












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-


-


-


-


-


-


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