已知x,y满足2x+y=13,且满足x+y=2,求4x+3y=______.
问题描述:
已知x,y满足2x+y=13,且满足x+y=2,求4x+3y=______.
答
已知x,y满足2x+y=13,且满足x+y=2,求4x+3y=______.
2x+y=13.(1);x+y=2.(2)
(1)+2×(2)得4x+3y=13+4=17.