五年级数学上册《简易方程》
四、解方程(18分)
4x+1.5=2.5 2x+48=84 6x-2×3=6
9x-4.5x=45 1.5x+x=62.5 4.524 x -8 x =28.8 61.8÷0.3-0.2 x=2 5.60.7x+4=25 4.5X+1.6X=42.7 5x+0.1x=50+6.1 31.2-0.9+5 x=0.8 7.2×0.4
4.5÷x -3=1.5 (7-1.4)20=5 x-3 x 1.82.4
13.7—x = 5.29 15135
4.2×3—3x = 5.1 8x2 x +5 = 40 6.2
1
×3+0.6x=21.3
x-12=30 ÷x=2×4 ×9-x=8 x-3.6 x=9 x =2.8 ×2-0.3x= x-8 x+30=+0.4×1.2=1.2 x-x=41.6
3.2÷x-2.4=0.8 9 x-14×5.5=58 5 x+1.5 = 4.5 100-9 x-12 x=37
8.5 x+6.5 x=225 x-0.8 x+0.7 x=8.1
0.5 x+1.5
=15.6 42
x-18×2=20
x
x+5.6=9.4
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