1 六年级下册解方程和解比例练习题六年级下册解方程和解比例练习题 x = 0.24x1.8=4.2 x = 5 3 72 25 9 8 6 1 51 16 x21=4 x=12 3.6x22.16 10 3 3 2 3 2 4 1 x -x = 4 x638 x = 5 2 3 1 10 3 21 8 15 4 x= x + x = 4 x 7 3 x12 5 4 28 15 2 1 6 1 x -25% x=10 xx = 4x3 9 = 29 2 1 8 7 4 3 x0.25= 4+0.7x =102 x = 4 1 8 3 4 1 4 3 x 9 8 6 1 51 16 解比例:解比例: x:10=: 0.4:x=1.2:2 = 4 1 3 1 4 . 2 12 x 3 :=:x 0.8:4=x:8 :x=3:12 2 1 5 1 4 1 4 3 1.25:0.25=x:1.6 = = 9 2 x 8 x 36 3 54 x: =6: = 45:x=18:26 3 2 25 24 x 5 . 4 2 . 2 6 2.8:4.2=x:9.6 :x=: 2.8:4.2=x:9.6 10 1 8 1 4 1 x:24= : 8:x=:=x: 4 3 3 1 5 4 4 3 8 5 6 1 12 1