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2.6%x%6%x=40方程怎么解

3.38x=7.8 x=7.8÷3.38 x=30/13

(上)50%x+x=上50,&2bs下;&2bs下;&2bs下;&2bs下;&2bs下;&2bs下;&2bs下;&2bs下;&2bs下;&2bs下; 上.5x=上50,&2bs下;&2bs下;&2bs下;&2bs下;&2bs下; 上.5x÷上.5=上50÷上.5,&2bs下;&2bs下;&2bs下;&2bs下;&2bs下;&2bs下;&2bs下;&2bs下;&2bs下;&2b...

x=2/3

解:1.36x-x=360.36x=36x=100

(1)50%x+x=150, 1.5x=150, 1.5x÷1.5=150÷1.5, x=100;(2)x÷10%=300, x÷0.1=300,x÷0.1×0.1=300×0.1, x=30;(3)3%x+20=60×56, 0.03x+20=50,0.03x+20-20=50-20, 0.03x=30,0.03x÷0.03=30÷0.03, x=1000;(4)45x-12.6=40%x, 0.8x-...

(1)x+35x=64 85x=64 85x÷85=64÷85 x=40;(2)20%x-0.4=1.2 20%x-0.4+0.4=1.2+0.4 20%x=1.6 20%x÷20%=1.6÷20% x=8.

40%X=120 40x=12000 x=300 60%X-35%X=10 60x-35x=1000 25x=1000 x=40 X+110%X=42 100x+110x=4200 210x=4200 x=20 X-50%X=140 100x-50x=14000 50x=14000 x=280

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(1.25x+x)×4=3605x+4x=3609x=3609x÷9=360÷9x=40谢谢采纳~

20-160%X=6 解:20-1.6X=6 1.6X=20-6 1.6X=14 X=14/1.6 X=8.75

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