方程式系 ワークシート

2x + 9y = 73, x = 5 → y = ____

7x + 8y = 135, x = 9 → y = ____

x + y = 14, x − y = 2 → x = ____, y = ____

x + y = 17, x − y = 1 → x = ____, y = ____

4x + 7y = 11, x = 1 → y = ____

8x + 3y = 73, x = 8 → y = ____

x + y = 7, x − y = -5 → x = ____, y = ____

x + y = 13, x − y = 5 → x = ____, y = ____

x + y = 15, x − y = 1 → x = ____, y = ____

7x + 2y = 40, x = 4 → y = ____

5x + 7y = 67, x = 5 → y = ____

2x + 5y = 53, x = 9 → y = ____

x + y = 6, x − y = -4 → x = ____, y = ____

8x + 3y = 37, x = 2 → y = ____

x + y = 9, x − y = 5 → x = ____, y = ____

3x + 6y = 15, x = 1 → y = ____

4x + 8y = 60, x = 1 → y = ____

x + y = 6, x − y = 2 → x = ____, y = ____

4x + 9y = 90, x = 9 → y = ____

3x + 2y = 14, x = 4 → y = ____