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分数解方程100道及答案

(1)2x+8=162x=16-8x=8÷2x=4(2)x÷5=10x=5*10x=50(3)x+7x=88x=8x=8÷8x=1(4)9x-3x= (44)20x-12x=1008x=100x=100÷8x=12.5(45)5x-2x=303x=30x=30÷3x=10(46)89x-43x=9

3x=1/2 4/5 x=3/10 x÷14/15=1/7 x* 1/4=5 3/4+x=3/43/10÷x=4/5 x+2/3x=25 x+8/5÷40=3/20 1-3/4x=7/10 x*1/4÷4=1/8*24x+2/5x=70.4 19-6/5x=7 3/5x=25=40 x-1/10x=18 12÷x=6/131.25÷x=1/20 x÷3=4/9

1. 1/5 +x=4/5 2. x-3/7=3/7 3. x+4/15=2/5 4. x-13/15=2/15 5. x+2/15=7/15 6. x+2/9=7/97. 1/2-x=1/8 8. 1/5+x=9/10 9.5/7-x=7/1410. 1-(x+5/36)=1/9 11. 5/12+x=5/9 12. 5/9-x=1/

733x+4=67440 [x=92]718x-5=60307 [x=84]111x+5=2114 [x=19]867x+4=58093 [x=67]452x+1=38873 [x=86]806x+2=59646 [x=74]465x+6=36741 [x=79]694x+1=13881 [x=20]

http://www.lesun.org/teacher/html/2004-11/4431.htm http://www.baidu.com/s?ie=gb2312&bs=%D0%A1%D1%A7%CE%E5%C4%EA%BC%B6%B7%D6%CA%FD%BD%E2%B7%BD%B3%CC100%B5%C0&sr=&z=&cl=3&f=8&tn=baidu&wd=%

1) 3X-(1/2+1/4)=7/12 3X=7/12+3/4 3X=4/3 X=4/9 (2) 6.6-5X=3/4-4X 6.6-0.75=-4X+5X X=5.85 (3) 1.1X+2.2=5.5-3.3X 1.1X+3.3X=5.5-2.2 4.4X=3.3 X=3/4=4/3 还有(0.5+x)+x=9.8÷2 2(X+X+0.5)=9.8 25000+x=6x 3200=450+5X+X X-0.8X=6 12x-8x

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