五年级数学上册解方程专项训练(3)

x-3.2=8 11x+11x=11 8x-4.2x=15.2

6.55-x=2.87 x+5.3=40.9 x+4.6=67.4 6.16-x=4.2 5.81-x=4.39 15x+8x=18.4 7x+2x=4.5 13x+13x=18.2 12x+17x=14.5 14x+18x=19.2 6.3x-4.4x=17.1

7.1x-4.3x=84

8.3x-3.3x=70

8.1x-1.8x=170.1

8.3x-3.9x=74.8

5.1+x=11.5 x-1.4=76.9 x-1.2=60.8 x-7.8=44.4 3.1+x=86.5 7.58-x=3.1 3x+4x=1.4 5x+16x=16.8 2x+13x=12 13x+6x=11.4 15x+5x=18 12x+6x=3.6 7.5x-4.5x=51

6.3x-2.2x=8.2

9.4x-4.1x=42.4

6.1x-1.4x=23.5

7.6x-2.8x=57.6

7.3x-1.8x=60.5

9.99-x=2.45 2x+3x=0.5 6.9x-4.6x=43.7

x-3.7=99.5 13x+8x=10.5 9.9x-3.9x=66

x-9.3=99 1.9+x=28.3 7.45-x=3.08 8.7+x=12.2 +4x=11.2 6.1x-4.9x=15.6

13x+7x=12 8.1x-4.6x=31.5

15x+12x=2.7 8.8x-3.7x=45.9

18x+3x=16.8 6.8x-5x=41.4

10x

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