方程式系 ワークシート

5x + 3y = 72, x = 9 → y = ____

x + y = 10, x − y = 6 → x = ____, y = ____

x + y = 12, x − y = 4 → x = ____, y = ____

5x + 9y = 52, x = 5 → y = ____

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

x + y = 8, x − y = 2 → x = ____, y = ____

7x + 8y = 61, x = 3 → y = ____

x + y = 7, x − y = -3 → x = ____, y = ____

4x + 6y = 14, x = 2 → y = ____

9x + 2y = 34, x = 2 → y = ____

8x + 6y = 48, x = 3 → y = ____

2x + 2y = 10, x = 1 → y = ____

3x + 4y = 27, x = 1 → y = ____

x + y = 8, x − y = -4 → x = ____, y = ____

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

x + y = 11, x − y = 5 → x = ____, y = ____

4x + 5y = 21, x = 4 → y = ____

x + y = 12, x − y = 6 → x = ____, y = ____

4x + 9y = 39, x = 3 → y = ____

7x + 2y = 77, x = 9 → y = ____