미지수가 두 개인 연립일차방정 연습문제(Exercises on System of Two Linear Equations in Two Variables)

pdf	:	https://min7014.github.io/2021/2021013101.pdf
AlgeoMath	:	https://me2.do/GbEmSZkn
Geogebra Tube	:	https://www.geogebra.org/m/dkvfzcff
NFT	:	https://opensea.io/assets/klaytn/0x9faccd9f9661dddec3971c1ee146516127c34fc1/1957973228
고유번호	:	math20210131001
수정날짜	:	20210131
제작날짜	:	20170430
고유주소	:	https://min7014.github.io/math20210131001.html

알림 (Notice)