1、乐享教育一元一次方程(1) ; (2)421x 7.05.18.0xx(3) ; (4) ;xx253421 6731x(5) ; (6)316214xx xx23)12(3(7) (8))3102()31(2xx )62(51)(4)2(31)(2 xxxx(9)5x+2=7x - 8; (10) 01231427xx(11) ; (12) ;37615x123127yy(13) ; (14)2162x 2132xx(15) ; (16)12321xx 1238)412(3xx(17) (18))96(328)135(27xx 296182xx(19) ; (20)xxx52%)10(3)(
2、 24352xx(21) ( 22)2(2x-1)-4(4x-1)-5(2x+1)-19=015312461x(23) (24)2164531xx 03.22.0515.940xxx(25) (26)234(5x-1)-8-20-7=1321)41(32xx(27)2(0.3x-4)-5(0.2x+3)=9 (28)2(x+3)-2(x+1)-5=0(29)3x- (30)62163)(2xx 6.12045.3x(31) (32)3x=2x+5 (33)2y+3=y1186)432(5179x(34)7y=43y (35) = (36)10x+7=12x53x y5231(37)8x4+2x
3、= 4x3 (38) 2(3x+4)=6-5(x-7 ) (39) (40) 6125342xx 2)1(2xx(41) (42) 5.32.05.01.)2(xx 5432)5( xx(43) (44). x- = -141.50.8123.xx31x62(45) - =5.094y23.0y(46) 3(x+2)- (2x-3)=2(2x-3)- (x+2)3121(47) ( x-2)-2-2=0 (48) 5(y8)5 4(2y7); 31(49)、 ; (50)、 ;632)1(23xx 3.0452.1.8xx(1)x =2; (2)x =2; (3)x =7; (4)x =1;
4、(5)x =5; (6)x = ;31(7)x = ; (8)x = (9)x =5; (10) ; (11)x=3; (12) ;1872y(13)x=0; (14)x =6; (15) ; (16) 64117. 18. 19 209853750632x256x21. x=8 22.x=-1 23.x=-3 24.x=9 25.x= 1826.x=1 27、x=-80 28、x=- 29、 30、24.96 31、x=12395232)x=5 33)y=4 34)y= 35)y= 36)x=12 37)x=52656138.x=3 39.x=- 40.x= 41. 42、 =6 ; 43、 2 ;7172xxx44 45. 46. 47. x=1862x9y148、 y 21 49、x ; 50、x ;2110