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
;