700÷(x+5)=600÷(x+25),化除为乘,式子为:700 X (x+25)=600 X (x+5)700x+700x25=600x+600x5700x-600x=600x5-700x25100x=100(6x5-7x25)x=-145
700÷(X+5)=600÷(X+25),700(X+25)=600(X+5),7X+7x25=6X+5x6,X=30-175=-145