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分数方程练习题X X= 2X + = 3/4X + 1/5X = 3.6 XX121 5X3 X126X5/7-3/7 =8 3-X=：3/4X：= X= 2 X +6=4X ：X= X = ： = X： X：=： 3/232-4x= 29 x = 4-xX21=4 6X5 =13.4 X-X= 46385X= :X= X=X=12 =:X X=: =X: X-0.25= =3/10 4+0.7X=102 X+X=42 X=105-X X-X=400 X-0.125X=8 = X+X=18 X( + )= x0.375x= x+=4 XX12 5 X2.4580.365- x = (x- 4.5) = 7 x- 25%x = 10x- 0.8x = 16+6 20 x 8.5= 1.5 x- x -4= 21 X1/4X=90 XX= 7/12:X=5/8:6/7XX121 5X3 X12
