用一元一次方程式怎么解答(1-0.75)x=(1-0.8)(54-x)
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用一元一次方程式怎么解答(1-0.75)x=(1-0.8)(54-x)
用一元一次方程式怎么解答(1-0.75)x=(1-0.8)(54-x)
用一元一次方程式怎么解答(1-0.75)x=(1-0.8)(54-x)
(1 - 0.75)x =(1 - 0.8)(54 - x)
0.25x = 0.2(54 - x)
0.25x = 10.8 - 0.2x
0.25x + 0.2x = 10.8
0.45x = 10.8
x = 10.8 ÷ 0.45
x = 24
(1-0.75)x=(1-0.8)(54-x)
0.25x=0.2*(54-x)
0.25x=10.8-0.2x
0.25x+0.2x=10.8
0.45x=10.8
x=24
(1-0.75)x=(1-0.8)(54-x)
0.25x=0.2(54-x)
0.25x=10.8-0.2x
0.25x+0.2x=10.8
0.45x=10.8
x=24
0.25x=0.2(54-x)
0.25x=10.8-0.2x
0.25x+0.2x=10.8
0.45x=10.8
x=24