苏教版七年级数学上册课时练习(含答案)

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Day1

(1)23x +3=3

4x ﹣2

(2)x -32﹣4x +15

=1

(3)﹣x ﹣3=﹣2

5

x +1

(4)7﹣2x =3+4(x ﹣2) (5)2x -13=2x +16

-1

(6)10x +56﹣2x -3

3

=1

(7)1﹣12x =3﹣1

3(x ﹣1) (8)3y -14-1=5y -76 (9)4x +3(2x ﹣3)=12﹣(x +4).

(10)y -12=2﹣y +25 (11)14(x ﹣3)﹣2=1

6(2x +3) (12)x -22﹣1=x +13﹣x +86

(13)x -30.3﹣2x +0.10.2=﹣1 (14)x +53+4=x +32﹣5x -26 (15)0.1x 0.2﹣0.01x -0.010.06=x ﹣1

3

Day2

(1)3x ﹣7(x ﹣1)=3﹣2(x +3) (2)32(x ﹣1)﹣8

5x =﹣0.5(x ﹣1)

(3)1-x 2=4x -13﹣1 (4)2x -13=x +3

4﹣1

(5)x -13﹣5x -16

=1

(6)3x -64-1=-5x -7

3

(7)2﹣2x -43=x -7

6

(8)1﹣4-3x 4=5x +3

6

﹣x

(9)7x -12﹣4x +12=3x +2

4

(10)x ﹣19(x ﹣9)=13[x +1

3

(x ﹣9)]

(11)2x -10.5﹣x +3

0.6=0.5x +2

(12)43[34(1

5

x ﹣2)﹣6]=1

(13)7x -13-5x +12=2-3x +24 (14)3x -23-0.1x -0.3

0.2=1

(15)0.1(2x -4)-10.2=0.2(4-2x )-0.1

0.3-1

参考答案 Day1 (1)x =60; (2)x =﹣9;

(3)x =﹣203; (4)x =2; (5)x =﹣3

2

(6)x =﹣5

6

(7)x =﹣14; (8)y =﹣1;

(9)x =17

11

(10)y =3;

(11)x =﹣39; (12)x =3; (13)x =﹣5740; (14)x =﹣234; (15)x =3

4

Day2 (1)x =5; (2)x =5; (3)x =1; (4)x =1

5

(5)x =﹣7

3

(6)x =2; (7)x =27

5;

(8)x =6

11;

(9)x =2; (10)x =﹣9

2;

(11)x =54

11;

(12)x =55;

(13)x =4;

(14)x =13; (15)x =0.25

7

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