如果x+2y=3 7x+5y=-1,那么(4x+8y)/3+(14x+10y)/2=?急!

网友回答

x+2y=3 7x+5y=-1,
∴(4x+8y)/3+(14x+10y)/2
=4/3×﹙x+2y)+(7x+5y)
=4/3×3-1
=4-1=3======以下答案可供参考======
供参考答案1:
(4x+8y)/3+(14x+10y)/2=3