六年级解方程练习题42页.doc

六年级解方程练习题4x x= 2x + = 70%x + 20%x = 3.6 x=2025% + 10x = x - 15%x = 68 xx121 5x3x12 6x5 =13.4 3x=x= xx= 4x6=2 x= x = x = x = 4x3 9 = 29 x + x = 4 x21=4 6x5 =13.4 x - x= 4x638 5x = 六年级解方程练习题x= x= x=12 x= x= x= x-0.25= =30% 4+0.