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五年级解方程练习题50题及答案

2020-02-18 来源:爱站旅游
导读五年级解方程练习题50题及答案


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50题及

五年级解方程50题有答案

(1)+x)+x=÷2

(2)2(X+X+=

(3)25000+x=6x

(4)3200=440+5X+X

(5)=6

(6)12x-8x=

(7) +2X=15

2

(8)= (7)x+=

(10)= (11)91÷x= (12) X+=

(13) 15x=3 (14) 3x-8=16

(15) 3x+9=27

(16) 18(x-2)=270

(17) 12x=300-4x

(18) 7x+=

(19) 3x÷5=

(25) +8=43

(26) 6x-3x=18

(27) 7+x)=

(28) ÷x=

3

(29) =

(30) x÷=90

(31) (x+6)=×

(32)

(33) 9x-40=5

(34) x÷5+9=21

(35) 48-27+5x=31

(36) +x+21=56

(37) x+2x+18=78

(38) (200-x)÷5=30

(39) (x-140)÷70=4

(40) 20-9x=2

(41) x+=

(42) =

(43) =

(44) ÷x=

(45) 5x+=

4

(46) 5(x+8)=102 (47) x+3x+10=70

(48) 3(x+3)=50-x+3

(1)+x)+x=÷2 +2x= += 2x= 2x÷2=÷2 X= (2)2(X+X+= 2x+2x+1= 4x+1-1= 4x= 4x÷4=÷4

X=

(3)25000+x=6x 25000+x-x=6x-x

5x=25000 5x÷5=25000÷5 X=5000

(4)3200=440+5X+X 6x+440=3200 6x+450-450=3200-440 6x=2760 6x÷6=2760÷6

X=460

(5)=6

(49) 5x+15=60

(50) =2

五年级解方程50题答案 =6 ÷=6÷ X=30

(6)12x-8x=

4x= 4x÷4=÷4 X= (7) +2X=15 2x+ 2x= 2x÷2=÷2 X= (8) = ÷=÷ X=68 (9) x+= X+ X= (10)= = ÷=÷

X=12

(11)91÷x= 91÷x×x=×x =91

5

÷=91÷ X=70 (12) X+= X+

X=

(13) 15x=3 15x÷15=3÷15

X=

(14) 3x-8=16 3x-8+8=16+8 3x=24 3x÷3=24÷3 X=8 (15) 3x+9=27 3x+9-9=27-9 3x=18 3x÷3=18÷3 3x=6 (16) 18(x-2)=270 18x-36=270 18x-36+36=270+36 18x=306 18x÷18=306÷18 X=17 (17) 12x=300-4x 12x+4x=300-4x+4x 16x=300 16x÷16=300÷16 X= (18) 7x+= 7x+ 7x= 7x÷7=÷7 X= (19) 3x÷5= 3x÷5×5=×5 3x=24 3x÷3=24÷3 X=8 (20) 30÷x+25=85 30÷x+25-25=85-25 30÷x=60 30÷x×x=60×x 30=60x 60x÷60=30÷60

X= (21) ×8-2x=6 +2x=6+2x =6+2x 2x+6-6=

2x= 2x÷2=÷2 X= (22) ×3= = 6x= 6x÷6=÷6 X= (23) 410-3x=170 410-3x+3x=170+3x 170+3x=410 3x+170-170=410-170 3x=240 3x÷3=240÷3 X=80 (24) 3(x+=21 3x+=21 3x+ 3x= 3x÷3=÷3 X= (25) +8=43 +8-8=43-8 =35 ÷=35÷ X=70 (26) 6x-3x=18 3x=18 3x÷3=18÷3 X=6 (27) 7+x)= 7x+= 7x+ 7x=42 7x÷7=42÷7 X=6 (28) ÷x= x=÷ X=

6

(29) = ÷=÷ X=

(30) x÷=90 x÷×=90× X= (31) (x+6)=× += + = ÷=÷ X= (32) 24÷x=4 x=24÷4 X=6 (33) 9x-40=5 9x-40+40=5+40 9x=45 9x÷9=45÷9 X=5 (34) x÷5+9=21 x÷5+9-9=21-9 x÷5=12 x÷5×5=12×5 X=60 (35) 48-27+5x=31 5x+21-21=31-21 5x=10 5x÷5=10÷5 X=2 (36) +x+21=56 x+ x= (37) x+2x+18=78 3x+18-18=78-18 3x=60 3x÷3=60÷3 X=20 (38) (200-x)÷5=30 (200-x)÷5×5=30×5 200-x=150 200-x+x=150+x 150+x=200 X+150-150=200-150

X=50

(39) (x-140)÷70=4 (x-140)÷70×70=4×70 X-140=280 X-140+140=280+140 X=420 (40) 20-9x=2 9x=20-2 9x=18 9x÷9=18÷9 X=2 (41) x+= X+ X=6

(42) = ÷=÷ X=6

(43) = +x=+x +x= X= X=6 (44) ÷x= X=÷ X=6

(45) 5x+= 5x+ 5x= 5x÷5=÷5 X= (46) 5(x+8)=102 5x+40=102 5x+40-40=102-40 5x=62 5x÷5=62÷5 X= (47) x+3x+10=70 4x+10=70 4x+10-10=70-10 4x=60 4x÷4=60÷4 X=15 (48) 3(x+3)=50-x+3

7

3x+9=53-x 3x+x+9-9=53-x+x-9 4x=44 4x÷4=44÷4 X=11

(49) 5x+15=60 5x+15-15=60-15 5x=45 5x÷5=45÷5 X=9 (50) =2 +5x=2+5x 5x+2= 5x+2-2= 5x= 5x÷5=÷5 X=

8

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