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x%1.7=2.5的解方程怎么写

x-1.7=2.5的解方程 解:x=2.5+1.7 x=4.2

x一1.2=6.7 解:原方程即: x一1.2=6.7 x=1.2+6.7 x=7.9

7/9+x=1解方程 7/9+x=1 x=1-7/9 x=2/9

(1)2(x+1.7)=9.2, 2(x+1.7)=9.2÷2, x+1.7=4.6,x+1.7-1.7=4.6-1.7x=2.9;(2)8x-4x=0.64, 4x=0.64,, 4x÷4=0.64÷4,x=0.16; (3)2x-0.24=0.12,2x-0.24+0.24=0.24+0.12, 2x=0.36, 2x÷2=0.36÷2x=0.18;(4)6.2x-x=416, 5.2x=41...

(1)6.7-6X=2.5, 6.7-6X+6X=2.5+6X, 2.5+6X=6.7, 2.5+6X-2.5=6.7-2.5, 6X=4.2, 6X÷6=4.2÷6, X=0.7;(2)2.5+7X=4.6, 2.5+7X-2.5=4.6-2.5, 7X=2.1, 7X÷7=2.1÷7, X=0.3;(3)9X+X=25, 10X=25, 10X÷10=25÷10, X=2.5;(4)5.6X-2.9...

我来

(1)x+6.6=8.4 x+6.6-6.6=8.4-6.6 x=1.8;(2)0.93÷x=0.31 0.93÷x×x=0.31x 0.93=0.31x 0.31x=0.93 0.31x÷0.31=0.93÷0.31 x=3; (3)x-1.2=6.7 x-1.2+1.2=6.7+1.2 x=7.9验算:左边=7.9-1.2=6.7右边=0.7左边=右边,所以7.9是原方程的解; (4)...

x÷1.7=0.85 x=0.85×1.7 x=1.445

计算 1.9(x+0.5)=1.7(x+3.2) 1.9x+0.95=1.7x+5.44 x=(5.44-0.95)/(1.9-1.7) =4.49/0.2 =22.45

27-1.7X=13.4 1.7X=27-13.4 1.7X=13.6 X=13.6÷1.7 X=8 不懂可追问,有帮助请采纳,谢谢!

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