60x+70(100-x)=63*100这个方程怎么解?

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60x+70(100-x)=63*100这个方程怎么解?
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60x+70(100-x)=63*100这个方程怎么解?
60x+70(100-x)=63*100这个方程怎么解?

60x+70(100-x)=63*100这个方程怎么解?
60x+70(100-x)=63*100
60x+7000-70x=6300
60x-70x=6300-7000
-10x= -700
x= -700÷(-10)
x=70

60x+70(100-x)=63*100
60x+7000-70x=6300
60x-70x=6300-7000
-10x=-700
10x=700
x=70

60x+70(100-x)=63*100
60x+7000-70x =6300
6x+700-7x =630
6x -7x =630-700
-x =-70
x =70

60x+70(100-x)=63*100
解60x+7000-70x=6300
60x-70x=6300-7000
-x=-70
x=70
谢谢采纳

60x+70(100-x)=63*100
60x+7000-70x=6300
-10x+7000=6300
-10x=6300-7000
-10x=-700
x=-700/-10
x=70