分数解方程专项练习题1doc.docx

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1、分数解方程专项练习题1doc解方程: 学生姓名： 家长签名： x x= 2x + = 232331x+ x = 3.6 74x3=20154 x - 320x = 68 6x5 =13.4 4x3 9 = 29 125 x =310 551+ 10x = 445 5x38x121 34X+14=38 x7x=384 481169 x = 651 105x352157 23x1412 1x + 126x = 4 x623=2 x 61335=264525 x2+1=43 X3X12 5 X2.458 328733210.365- x = (x- 4.5) = 7 x- 1x = 10 45 x-

2、 0.8x = 16+6 20 x X14X=90 3X1.42=1.1 3 8.5= 1.5 X37 X= 8956x-23-13x=4324x- 45 x -4= 21 518+X = 1112 X+2312=1718 2233X X= 2X + = 70%X + 20%X = 3.6 7554 X35=2014 25% + 10X = X38X121 5X 6X5 =13.4 X277=1645 X - 15%X = 68 352157 34X+14=38 3X=X78X=34 23X1412 38 4X623=2 123 X= 3 X = 5510 X 6=262572 8 X = 9

3、1616 5113 4x3 9 = 29 1x + 1x = 4 354525 3X212103=4 6X5 =13.4 5X=151923X14=12 x+14x=20 25 X-13 X=310 821X=415 X 35X=2572 262(x-2.6)=8 4638 4155=28 89X=161651 X6=2613 X-0.25=1 X=30% 3545254+0.7X=102 X-38X=400 X+37 X=18 X X 237 X=4 4 23X+12X=42 X+ X-0.125X=8 ( 13136 + 8 )=12 2X + 235 = 5 414X=105 363X

4、= 4x0.375x=56 0.7X + 0.2X = 3.6 13143X=20 4 + 10X = X - 20X = 68 54 X38X121 6X5 =13.4 4x3 9 = 29 125 X=310 12x+13-13x=1 0.8x+16=96 5 5X355217 34X+14=38 X7X=384 89 X = 161651 X+2312=1718 .3xx 23X1412 12x + 16x = 4 4X623=2 X 6261335=4525 2X19 = 89 5.5x3x = 1.75 2x10 = 5.2 80x20 1.2x0.8x28 2x0.1=3.7 1.6x3.4x27 1.7x0.3x7.8 x0.24100 2 x+2.5=12.5 9 x4=1.8 10x-8+4x=10 9x+6-3x-5=7 0.7x0.9=7.2 5 x-2=10.5 6x+7+5x=18 9x-9-7x=7 12x-6-3x-5=7 1.3x2.43=12.4 4 x+2.4 x=12.8 13x+14-5x=30 5x+6+4x-3=16 4x+(5x+5)=14