★+★+△=77 ★+△+△=58 ★=( )△=( )
问题描述:
★+★+△=77 ★+△+△=58 ★=( )△=( )
答
设★为X,△为Y,2X+Y=77 X+2Y=58,解方程得X=32,Y=13
★+★+△=77 ★+△+△=58 ★=( )△=( )
设★为X,△为Y,2X+Y=77 X+2Y=58,解方程得X=32,Y=13