5/3x=72/35 X=?急
问题描述：
5/3x=72/35 X=?
急
答
X 35-X 12.8-16.2=79.4X-12.8 16.2-X 12.8-16.2 78.4X=31.6 X= 196/79 X/5*5=4.26*5 X=21.3 3.6X=9.72 3.6X/3.6=9.
答
5/3x=72/35
x=72/35x3/5
x=216/175