当x等于2,y等于6,求1/2x+3y和0.5y+1/2x的值(1/2)x+3y=(1/2)×2+3×6=1+18=19.0.5y+(1/2)x=0.5×6+(1/2)×2=3+1=4.
当x等于2,y等于6,1/2x+3y=19，0.5y+1/2x=4
