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x除以3%x除以4.5=2.5怎么解

15%x=3 15x=300 x=300/15=20 34%x+7=24 34%x=24-7=17 2%x=1 x=5 180%x÷0.5=7.2÷0.5 180%x=7.2 1.8x=7.2 x=4 10.7+20%x=18.7 10.7+0.2x=18.7 0.2x=18.7-10.7=8 x=8/0.2=40 x-85%x=1.2 x-0.85=1.2 0.15x=1.2 x=1.2/0.15=8 2.5x=3÷0.3 2.5x=10 x=10...

3.25%x=4130-x 0.0325x=4130-x x+0.0325x=4130 1.0325x=4130 x=4130/1.0325 x=4000

308? 80000x1/4x1.54% =20000x1.54% =200x1.54 =308

(1)x+40%x=7 x=7/140%=5 (2)120%x-x=7 x=7/20%=35 (3)x-18%x=8.2 x=8.2/82%=10

29%x+71%x=2/3 解:100%x=2/3 x=2/3

(1+3.3%x3)x=8792 109.9%x=8792 x=8792÷109.9% x=8000

x+0.13x-0.28x=3.4 0.85x=3.4 x=4

(1)14x=5 14x÷14=5÷14 x=20 (2)57x=314 57x÷57=314÷57 x=310(3)50%x=50050%x÷50%=500÷50% x=1000 (4)x-15x=89 45x=89 45x÷45=89÷45 x=109(5)2x+23x=24 83x=24 83x÷83=24÷83 x=9(6)x÷1415=17 x÷1415×1415=17×1415 x=215.

x+3×0.0425x=33825 (1+0.1275)x=33825 x=33825÷1.1275 x=30000

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