解方程:3000/(x+12)=(2400)/x
问题描述:
解方程:3000/(x+12)=(2400)/x
答
3000/(x+12)=2400/x
3000x=2400(x+12)
3000x=2400x+28800
600x=28800
x=48
经检验x=48是原方程的解