(1)20y+16+3y=24-5y-5

问题描述:

(1)20y+16+3y=24-5y-5
还有20y+16+3y-3=24-5y-16

位移 20y+3y+5y=24-5-16
合并同类项 28Y=3
两边除于28 y=3/28