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°à¼¶ ÐÕÃû ³É¼¨ 2233X£ X= 2X + = 70%X + 20%X = 3.6
7554
X¡Á35=20¡Á14
X£«38X£½121 5X
6X£«5 =13.4 X¡Â2=
7716
45 X - 15%X = 68
£3¡Á
521£½57 34X?14?38 3X=X£«78X=34 23X¡Â14£½12 38 4X£6¡Á23=2
25% + 10X =
123
¡ÂX= 3 X = 25 8 X =
1¡Á16
510 X¡Â 635=2645¡Á1325
3X£21¡Á2103=4
6X£«5 =13.4
5X=1519
5729 4x£3 ¡Á9 = 29 x?14x?20 25 X-13 X=3
10 821X=415 X65112x + 16x = 4
2(x?2.6)?8 4¦Ö£6£½38
¡Â45=1528
2X¡Â1=12 34 3X=25 8X=1¡Á16
5729651 X¡Â626=¡Â13
X-0.25=1
X=30%
354525
4+0.7X=102
X-38X=400
X+37 X=18 0.375x=56
442X+1X=42 X+1324X=105 X-0.125X=8
36 =
3X4 X¡Á( 16 + 313
8 )=12 x£
x¡Á2+1=4¡Á3 X£3X£½12 5 X£2.4¡Á5£½8
328
0.36¡Á5- 334 x = 5
x- 0.8x = 16+6 20 x
X£«25%X=90
0.8X£4£½1.6 5X
721
3 (x- 4.5) = 7 2 x- 25%x = 10
¨C 8.5= 1.5 x- 4
5 x -4= 21 X£37 X= 8
9
3.5X£«1.8£½12.3
¡Â2£½10 X£0.25X£½3