[질문] 올리드 중학수학2-1 개념교재편 p.43~46 답지좀여

[유사답변]답양이많아다알려드릴X 43p만알려드림차례대로(1)7x+3y(2)4x-9y(3)4x-y-3/(1)2x-10y(2)17x-19y(3)2x-14y+9/2/(1)12분의17x-23(2)6분의7x+7y/(1)-4x+9y(2)7x-4y/1