4.2解一元一次方程50道计算专项训练 2023—2024学年苏科版数学七年级上册

解一元一次方程50道计算题 专项训川练 (1)3(x-4)=12 (2)4:2.=4 (3)12-3(x-2)=4x+4 36 (4)2(2x+1)=1-5(x-2) (5) x.3x1=1 (6)+1.2_4x 36 364 (7)3x-7x.)=3.2(x+3) (8)42x-)=32x.)-1 (9)5+3r=2(5.x) 3 4 (10)2x+1.5.1=1 (11)3(x-4)=-6 (12)1.2x.1-. 36 3 6 (13)9-3y=5y+5 (14)2+1..2=1 (15)4-(x+3)=2(x-刂 34 16)241 6 (17)3.2x=x+1 (18):11=3x.2 3 (19)4(x-3)=16x-6 (20)+3=1. 2x-1 (21) 2x-1_2x+1.1 6 4 36 (22)2x3=2 (23)3y.1.1=5y1 (24)2x+3=5 4 6 (25)137-9-2)=43 (26)x+1.1=23x (27)3x.4)=12 2 3 (28)1.2x-1-2x+1 (29)2-3(x+1)=8 (30)5x3g:-2 3 6 43 (31)2x-3-3x+1=9(32)2+1.5.1=-1 (33）2x-32x.5)=7 46 (34)2x.5=1.2x+3 3 (35)+1.2-3=1 6 23 (36)3x.4x+1=2x+2 (37)2少1-+2.1 (39)2x1.1-1 34 (38)2(2x+1)=1-5(x-2) 36 (40)3(x-2)=18x+6 (41) 3-x.2x+1=9 (42)5+3x=25.x) 0.20.5 43)号231 (44)1-3(x-2)=x-5 (45) 2x-1.3-x=-1 36 (46)7x-9=9x-7 47-0=2*48) 23 x+1 (49)2(x+3)=5x (50)2.2x+1.1+x 32 参考答案 (1)8 (2)4 (3)2 (4)1 (5)-5 (6)号 (7)5 8日 (9)1 (10)-3 (11)2 (12) 3 (13) 2 14 (15)1 16》-号 (17) (18) (19) (20) (21) 月 (22)4 (23)-1 (24)1 25)号 (26) 9 (27)8 28) (29)-3 30)· (31)-18 (32) 4 (33)2 (34) 6 (35)7 (36)-2 37) (38)1 (39) 3 40 41)号 (42)1 43) (44)3 45》号 (46)1 (47)3 48)号 (49)2 (50)1