小升初数学解方程题练习

小升初数学解方程题练习大全

X- 2/7X= 3/4 2X +2/5 =3/5 70%X + 20%X = 3.6

X3/5=201/4 25% + 10X =4/5 X - 15%X = 68

X+3/8X=121 5X-35/21=5/7 2/3X1/4=12

6X+5 =13.4 3/4X+1/4=3/8 3X=3/8

X2/7= 7/16 X+7/8X=3/4 4X-62/3=2

12/5X= 3/10 3/5X =25/72 8/9X = 1/616/51

X6/35 =26/4513/25 4x-3 9 = 29 1/2x +1/6 x = 4

3/10X-212/3=4 X+1/4X=20 2(X-2.6)=8

6X+5 =13.4 2/5X-1/3X= 3/10 4-6=38

5X=15/19 8/21X= 4/15 X4/5=15/28

2/3X1/4=12 3/5X= 25/72 8/9X=1/616/51

X6/35=26/4513/25 X-0.25=1/4 X/4=30%

4+0.7X=102 2/3X+1/2X=42 X+1/4X=105

X-3/4X=400 X-0.125X=8 36/X=3/4

X+3/7X=18 X(1/6 +3/8 )=13/12 x-0.375x=5/6

x2/3+1/2=43/8 X-3/7X=12 5 X-2.45=8

0.365- 3/4x =3/5 2/3(x- 4.5) = 7 1/2x- 25%x = 10

x- 0.8x = 16+6 20 x- 8.5= 1.5 x- 4/5x -4= 21

X+25%X=90 X-3/7X=8/9