25%x=75%,50%x-25%x=25,x+31%=39.3,x-18%=65.6,20x-30=150请把算式和答
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25%x=75%,50%x-25%x=25,x+31%=39.3,x-18%=65.6,20x-30=150请把算式和答案写下来,
![25%x=75%,50%x-25%x=25,x+31%=39.3,x-18%=65.6,20x-30=150请把算式和答](/uploads/image/z/15737465-65-5.jpg?t=25%25x%3D75%25%2C50%25x-25%25x%3D25%2Cx%2B31%25%3D39.3%2Cx-18%25%3D65.6%2C20x-30%3D150%E8%AF%B7%E6%8A%8A%E7%AE%97%E5%BC%8F%E5%92%8C%E7%AD%94)
25%x=75%
x=75%÷25%
x=3
50%x-25%x=25
25%x=25
x=25÷25%
x=100
x+31%=39.3
x=39.3-31%
x=39.3-0.31
x=38.99
x-18%=65.6
x=65.6+18%
x=65.6+0.18
x=65.78
20x-30=150
20x=150+30
20x=180
x=9
再问: 8x=42=48
再答: 应该是8x+42=48吧? 8x=48-42 8x=6 x=3/4 x=0.75
x=75%÷25%
x=3
50%x-25%x=25
25%x=25
x=25÷25%
x=100
x+31%=39.3
x=39.3-31%
x=39.3-0.31
x=38.99
x-18%=65.6
x=65.6+18%
x=65.6+0.18
x=65.78
20x-30=150
20x=150+30
20x=180
x=9
再问: 8x=42=48
再答: 应该是8x+42=48吧? 8x=48-42 8x=6 x=3/4 x=0.75
x+25+x+x-27=103(列出算式,
x-30%x=14x+25%x=20
解方程、列算式.X+60%X=48 X-25%X=27 X-35%X=0.52
(X+X)+(X-X)+(X*X)+(X/X)=100
x-60%x-25%x=25%x-30
(25/X)X(30/X)= 15/X怎么算
3x(x-1)=2-2x,请把算式写下来吧!
解方程:25%x=75 60%x-35%x=125 x-40%x=120 x+15%x=115 15x-30=150 8
20%x+[25*(20%x)]+12=50%x+2
x加30%x=52、x减40%x=15、50%x加x=31.5、x减1%x=19.8、x加25%x=2.5、x减15%x
解下列方程 x+60%x=42 x-25%x=18 3x+20%x=48
6x+150%x=9 18-20%x=8 x-25%=0.8