六年级解方程及解比例练习题6

1、六年级解方程及解比例练习题61554.2 4x= 1.8 x =20X 丄 5 x 3X 上=- x-15% x = 68421 73 x = 250.24x 1.8=4.28x = - x 兰57296517 / 142 12x-丄=12343.6x- 2 = 2.1632x 21 x 2 =4103x *202(x-2.6) =86 x+ 5 =13.4 3x+ 5X 0.3=4.52x - -x = 4 x 6= 385310.4_ 153-25X+ =_x 528572-X -25% X=10 X+ 7X = 31X 0.25=144+0.7X =102,八2小1234x 6X =2X

2、 =35105 x =1584x =1921151 -X +1X =4x总X=122678 -X =1X164x 3X 9=29965121313-X +IX=42X=324489x壬0.7=98.8 + 4 x =40=1270%X+20%X = 3.67 1634x+ 3x= 121 25% + 10 x =-85x - 0.8 x = 16+64x x4= 21520 x 8.5= 1.5x+ 25%x =90( x-32) x 5=115x 2x = 32x +解比例:12 =324 x1 1x:10=丄：-0.4:x=1.2:24 33-:x=3:1240.8:4=x:81.25:0

3、.25=x:1.62 =836 = 549 xx 3x: 2 =6:244.5 645:x=18:26325x2.22.8:4.2=x:9.61 1 1:x=:2.8:4.2=x:9.6108 45 11=x:x:24二3. 14： 38:x=8 6120. 6 : 4= 2.4 : x0.61.512 x10 : 50= x : 401.3 : x = 5.2 : 20 x:3.6 = 6 : 181 :丄=163 : 20= 94.680.2 = x3 = 8 = 643141142511 :=x :12 :xx : 一 0 7 :4255361429 / 14解方程2 x=37 42X

4、+70%X + 20%X = 3.631XX 3 =2OX 丄25% + 10X =X - 15%X = 68543X+ 3X= 12182 1-X- 1 = 12346X+ 5 =13.43x3X=X-=-7 16X+ 8X=；24X 6X 2 =23123T - X吊258X=1X16X,=X5729651X-35 45254 x 3 X 9 = 29+丄x = 4266 _ 26 v 13一X 11 / 1432-X- 21 X 2 =4x *202(x -2.6) =81036X+ 5 =13.42132 X-3 X=13o4 X-6= 385X=d8 X=4X亠 4 = 151921

5、155282X- 1 = 128X=1X 16X= X 96513526 亠 13 4525X-0.25二1X=30%4412 / 144+0.7X=1022 1Wx+丄 X=42X+11 X=1053243X- 3 X=4008X-0.125X=836 =3乂 4X+3 X=18 X3138 )= 125-0.375x=-6xX 2+1=4X 3X3X= 125 X 2.4 X 5= 83 2870.36 X 5-3 (x- 4.5) = 72 x- 25%x = 10x- 0.8x = 16+620 x-8.5= 1.5 x-4 x -4= 21X+ 25%X=90X38X=X792 X=

6、7 416 / 1422X + 5 =70%X + 20%X = 3.6 Xx3=20x -5425% + 10X = 45X - 15%X = 68 X+ -X= 12185X 3X 空=52172X-丄=126X+ 5 =13.4344483X=3X.2-. _ 78716X+ - X=36x 2 =21234X5.Xh84310X -6吕x兰3 x = 2557235 45254x 3 x 9 = 291x + 1x = 432-X 21 x -=42 61032(x-2.6)=86X + 5 =13.42135 X-3 X=13)4X-6 = 385X=3519Ax=A21154 =

7、155 282 12X-丄=123418 / 143X=258X=1 x16X亠6 _. _26亠 .1357296513545251X=30%44+0.7X=102X- 3X= 1275 X 2.4 X 5 = 80.36X-0.25二丄42 12X+1X=4232X+1-X=1054X-33 X=4008X-0.125X=836 =;3X+3X=18X471313X +1=4x 3X X (+8)=12x0.375x二上xi 6632819 / 141 x 1670%X + 20%X = 3.6X31x 3=20x 125% + 10X =4545x- 0.8x = 16+620 x-8.

8、5= 1.5 x-x -4= 21x 3 x=2 x=37 42X +X - 15%X = 68X3+ 3X= 1215X3x = 82173133X=3-X -=4488X- 2 =_ 7X+ -X=-4X26x 2 =27168435X=X.4_15 1921155282 12X* 丄=123x=258X=1 x 16x= x 345729651123 -X=-X =25510572651X-6 = 26 x 1335 45254x 3 x 9 = 29!x +-x = 42632-X- 21 x 2 =4103x -202(x2.6) =846X+ 5 =13.45 X-3 X帀X 6= 3821 / 14_26亠 .13X-0.25=1X=30%354525444+0.7X=1022x+!x=42X+丄 X=1053243X- 0.36 x 5-x = X=400X-0.125X=836=38X431 3135X+; X=18Xx (+ -)=X