解方程 (1)3.5X+1.8=12.3 (2)X+ (5)X+ (9)X- (13) (17)2.2X-1=10 (18)X-0.8X=10 (19)2X-2421X=21 (3) X-X= (4)3.6X÷2=2.16 555223X= (6)0.8X-4=1.6 (7)5X÷2=10 (8)X-0.25X=3 742323952X= (10)X-= (11)2X+7X= (12)-X= 510510108571432X (14)1-X= (15)180+6X=330 (16)5X-X=2.4 10254523X= (20)4X+X=3.15 34 (21)3.4X+1.8=8.6 (22)75-5X=70 (23)6.6X-6X=1.8 (24)330-6X=180 (25)56=12X+8 (26)1- (29)8-23X= (27)54-7X=5 (28)6X-10=8 343329X=2 (30)3-1X= (31)2(X-1)=4 (32)2(6X-2)=8 84510 (33)5-3X=8X+1 (34)2(X-2)+2=X+1 (35)3-X=2-5(X-1) (36)3X=5(32-X) (37)7(4-X)=9(X-4) (38)128-5(2X+3)=73 (39)1.7X+4.8+0.3X=7.8 (40)4X÷0.24=100 (41)3(X+1)÷(2X-4)=6 (42)3X+7X+10=90 (43)3(X-12)+23=35 (44)7X-8=2X+27 (45)5X-18=3-2X (46)(7X-4)+3(X-2)=2X+6 (47)80÷X=20 (48)12X+8X-12=28 本文来源:https://www.wddqw.com/doc/2d66652231b765ce050814d7.html