写出顺序解方程7x+5.3=7.43x÷5=4.830÷x+25=851.4x8-2x=66x-1.28x3=0.064
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写出顺序
解方程
7x+5.3=7.4
3x÷5=4.8
30÷x+25=85
1.4x8-2x=6
6x-1.28x3=0.06
410-3x=170
解方程
7x+5.3=7.4
3x÷5=4.8
30÷x+25=85
1.4x8-2x=6
6x-1.28x3=0.06
410-3x=170
![写出顺序解方程7x+5.3=7.43x÷5=4.830÷x+25=851.4x8-2x=66x-1.28x3=0.064](/uploads/image/z/17621031-39-1.jpg?t=%E5%86%99%E5%87%BA%E9%A1%BA%E5%BA%8F%E8%A7%A3%E6%96%B9%E7%A8%8B7x%2B5.3%3D7.43x%C3%B75%3D4.830%C3%B7x%2B25%3D851.4x8-2x%3D66x-1.28x3%3D0.064)
1 7x+5.3=7.4 -- 7x=7.4-5.3 则 x=2.1/7=0.3
2 3x/5=4.8 则 x =4.8 *5/3=8
3 30÷x+25=85 x=30/(85-25)=0.5
4 1.4x8-2x=6 x=(1.4*8-6)/2=0.6
5 6x-1.28x3=0.06 x=(0.06+1.28*3)/6=0.65
6 410-3x=170 x=(410-170)/3=80
2 3x/5=4.8 则 x =4.8 *5/3=8
3 30÷x+25=85 x=30/(85-25)=0.5
4 1.4x8-2x=6 x=(1.4*8-6)/2=0.6
5 6x-1.28x3=0.06 x=(0.06+1.28*3)/6=0.65
6 410-3x=170 x=(410-170)/3=80