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五年级数学上册解复杂的方程练习
12x-8x=4.8 3.5-5x=2 5x-2x+18=78 x-0.7x=3.6
9.8-x=3.8 5x-45=100 4.5(x-2.5)=27 0.75 + 0.25x =1.25
7(6.5+x)=87.5 9x-x=16 6-2x=11 5x-2×2.5=20
1.5(x+1.6)=3.6 80÷5x=100 91÷7x =1.3 (200-x)÷5=30
(x-140)÷70=4 75.6÷x=12.6 (27.5-3.5)÷1.5x=4 4÷5x=20
54+48x=18x+60 5+3x=17.6-x 5x+2=7x-8
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