(x+16)/(5x+16)=1/4,解方程,要详细
问题描述:
(x+16)/(5x+16)=1/4,解方程,要详细
答
(x+16)/(5x+16)=1/4,
(x+16):(5x+16)=1:4
4(x+16)=5x+16
4x+64=5x+16
5x-4x=64-16
x=48
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