(X/2)*150 + (X/2)*75 = 300*500_数学解答

(X/2)*150 + (X/2)*75 = 300*500

人气：280 ℃　时间：2020-06-27 09:36:41

解答

(X/2)*150 + (X/2)*75 = 300*500
3(X/2)*75 = 150*2*500=75*4*500
3(X/2)=4*500
3X=8*500
X=4000/3