방정식 시스템 워크시트
이름: ____________________날짜: ____________
지침: 대입과 소거를 통해 선형 방정식 시스템을 푼다.
20 문제
- 3x + 9y = 90, x = 9 → y = ____
- x + y = 11, x − y = -5 → x = ____, y = ____
- 5x + 8y = 67, x = 7 → y = ____
- 3x + 9y = 45, x = 3 → y = ____
- 8x + 2y = 42, x = 5 → y = ____
- x + y = 4, x − y = -2 → x = ____, y = ____
- 1x + 1y = 8, x = 7 → y = ____
- 4x + 9y = 81, x = 9 → y = ____
- 9x + 3y = 18, x = 1 → y = ____
- x + y = 15, x − y = -3 → x = ____, y = ____
- x + y = 10, x − y = 4 → x = ____, y = ____
- 7x + 6y = 91, x = 7 → y = ____
- 2x + 5y = 39, x = 7 → y = ____
- x + y = 15, x − y = -1 → x = ____, y = ____
- x + y = 3, x − y = -1 → x = ____, y = ____
- 2x + 9y = 31, x = 2 → y = ____
- x + y = 11, x − y = -7 → x = ____, y = ____
- x + y = 4, x − y = 2 → x = ____, y = ____
- 2x + 1y = 22, x = 9 → y = ____
- x + y = 5, x − y = 1 → x = ____, y = ____