(0.25X+16)/(0.75x-16)=9/11怎么解

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(0.25X+16)/(0.75x-16)=9/11怎么解
(0.25X+16)/(0.75x-16)=9/11怎么解

(0.25X+16)/(0.75x-16)=9/11怎么解
化成分数
(1/4X+16)/(3/4X-16)=9/11
(1/4X+16)*11=(3/4X-16)*9
(X+64)*11=(3X-64)*9
16X=640
X=40