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4.8x 11.7=4x%3.9解方程

4.8x+11.7=4x-3.9 4.8x-4x=-3.9-11.7 0.8x=-15.6 x = -19.5

7.4X-3.9=4.8X+11.7 解 2.6X=15.6 X=6

解:4x=5.6十4.8 4x=10.4 x=2.6

4x=4.8-3.2 4x=1.6 x=1.6÷4 x=0.4

①x×2.5=10 x×2.5÷2.5=10÷2.5 x=4②7x-4x=4.8 3x=4.8 3x÷3=4.8÷3 x=1.6③5x-3.9=5.1 5x-3.9+3.9=5.1+3.9 5x=9 5x÷5=9÷5 x=1.8④8m÷4=158m÷4×4=15×4 8m=60 8m÷8=60÷8 m=7.5

发发汗反反复复v

两边同乘2得 4.8x=14.4 x=3 望采纳

2.7x+3=97.5 解:2.7x=97.5-3 x=94.5÷2.7 x=35 0.95÷0.4x=1.9 解:0.4x=0.95÷1.9 x=0.5÷0.4 x=1.25 6.8+x=24.5 解: x=24.5-6.8 x=17.7 6x-4x7.5=24 解: 6x=24+30 x=54÷6 x=9 4.8x-8=25.6 解:4.8x=25.6+8 x=33.6÷4.8 x= 7 12x-6x5=210 解: 12...

简算方法: 4.8x3.9+6.1x0.8 =4.8x(10-6.1)+6.1x0.8 =4.8x10-4.8x6.1+6.1x0.8 =4.8x10-(4.8-0.8)x6.1 =48-4x6.1 =48-24.4 =23.6

解方程4.8-X=3(X-6) 4.8-x=3x-18 4x=22.8 x=5.7 6.43-6.43×0.65-6.43×0.25 =6.43×(1-0.65-0.25) =6.43×0.1=0.643 棱长为1.5分米的正方体铁块体积=3.375立方分米 3×4×0.2=2.4立方分米 3.375-2.4=0.975立方分米 溢出0.975立方分米水 祝你好运

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